Trường THPT Kim Sơn C ĐỀ THI BÁN KỲ 2. MÔN TIẾNG ANH - KHỐI 12 Thời gian làm bài: 45 phút (Không kể thời gian phát dề) Họ và tên: Lớp: Số báo danh: Số phách: Phòng thi số: I. Choose the word whose underlined part is pronounced differently from the others 1. A. called B. passed C. talked D. washed 2. A. repeats B. coughs C. amuses D. attacks 3. A. hour B. host C. honest D. honor II. . Choose the word whose stress pattern is different from the others. 1. A. section B. status C. project D. produce 2. A. interest B. intelligent C. computer D. dependent III. Put the verbs in the correct forms. 1. He was often made (drink) milk by his mother. 2. If I (lose) my passport, I’ll be in trouble. 3. After she (return) home, she (cook) herself a dinner. 4. When I last (see) Jane, she (try) to find a job. 5. I asked Barbara to let me (use) her car for the weekend. IV. Put the prepositions in the gaps. 1. It was really kind …….you to help those poor people. 2. France is famous ………its food and perfume. 3. While I am waiting ……the bus, I often listen……music. V. Put the articles in the gaps. 1. I’ve lost my watch. ………watch was given to me on ……… my 18 th birthday. 2. ……… Sahara of ……… Africa is the world’s largest desert. VI. Put ‘however, so, but, therefore to complete the sentences. 1. It was midnight, ………the restaurant was still open. 2. The waiter was not very nice. ……… , the food is delicious. 3. He told me not to do it, ……… I didn’t do it. 4. He was prepared for the test; ………., he managed to pass it. VII. Put the “ may, needn’t, must, mustn’t” to complete the sentences. 1. We’ve got plenty of time. We ………hurry. 2. You ……….keep it in a secret. You ………tell anyone else. 3. Why don’t you ask mike? He ……… know the boy’s address. VIII. Rewrite the following sentences using the suggestions. 1. Jane will complete the reports tomorrow.  The reports …………………………………………………………………………………………. 2. “ Do you remember to buy some flowers?”, said Peter to Tom. - Peter asked …………………………………………………………………………………………. 3. They took the man to the hospital. He was injured in the accident.  They took ……………………………………………………………………………………………. 4. If you can’t do this task, you can ask him for help. - Unless ……………………………………………………………………………………………… XIX. Choose the best option A, B, C or D to complete the passage. Rivers are one of the world’s most important (1) …… resources. Many cities are on large rivers and almost every country (2) ………at least one river that plays an important part in the lives of its people. Besides transportation, rivers (3) ……… people with food and water. To get water for crops, a (4) ……….is built across a river. People can use water not only to irrigate but also to make electricity. However, several rivers are polluted when industries develop. It is necessary to keep rivers (5) ……….if people want to get benefits of the natural resources. ĐÁP ÁN ĐỀ THI BK 2 LỚP 12 I. 0,2 đ / câu = 0.6 đ 1. A 2. C 3. B II. 0,2 đ / câu = 0.4 đ 1. D 2. A III. 0.25 đ / 1 ý = 1.75 đ 1. to drink 2. lose 3. had returned, cooked 4. saw, was trying 5. use IV. 0,25 x 4 = 1 đ 1. of 2. for 3. for, to V. 0,25 x 4 = 1 đ 1. the – x 2. the – x VI. 0.25 x 4 = 1 đ 1. but 2. However 3. so 4. therefore VII. 0.25 x 4 = 1đ 1. needn’t 2. must – mustn’t 3. may VIII. 0.5 x 4 = 2 đ 1. The report will be completed by Jane tomorrow. 2. Peter asked tom if he remembered to buy some flowers. 3. They took the man who was injured in the accident to the hospital. Or they took the man injured in the accident to the hospital. 4. Unless you can do this task, you can ask him for help. 1. A. nature B. nation C. naturally D. natural 2. A. having B. has C. have D. is 3. A. provides B. provision C. providing D. provide 4. A. pool B. well C. pond D. dam 5. A. dirt B. clean C. to clean D. dirty VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ KIỂM TRA HỌC KÌ II, NĂM VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ THI HỌC KÌ NĂM HỌC 2016 - 2017 CHÂU THÀNH MÔN: HÓA HỌC LỚP Thời gian làm bài: 45 phút Câu 1: (2.0 điểm) a Trình bày tính chất hóa học axit Viết phương trình hóa học minh họa b Hãy giải thích hoàn cảnh không cho axit đậm đặc vào nước Câu 2: (2.0 điểm) Phân biệt dung dịch sau phương pháp hóa học: a HNO3, HCl, BaCl2, NaOH b Al, Fe, Cu Câu 3: (1.0 điểm) Hoàn thành chuỗi phản ứng sau: Na  NaOH  Na2CO3  Na2SO4  NaCl Câu 4: (2.0 điểm) Sau lần tham quan nhà máy, lớp làm tập tường trình thầy giáo có đặt câu hỏi thực tế: “Khí SO2 CO2 nhà máy thải gây ô nhiễm không khí nặng Vậy em nêu lên cách để loại bỏ bớt lượng khí trước thải môi trường” Bạn Ân cảm thấy khó cách trả lời em hỗ trợ bạn để giải câu hỏi Câu 5: (3.0 điểm) Biết 2,24 lít khí Cacbonic (đktc) tác dụng hết với 200 ml dung dịch Ba(OH)2, sản phẩm thu muối trung hòa nước a Viết phương trình xảy b Tính nồng độ mol dung dịch Ba(OH)2 cần dùng c Tính khối lượng kết tủa thu VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí ĐÁP ÁN ĐỀ THI HỌC KÌ MÔN HÓA HỌC LỚP Câu a TCHH axit: - Axit làm đổi máu quỳ tím thành màu đỏ 0.25 - Axit tác dụng với oxit bazo tạo thành muối nước 0.25 H2SO4 + CaO  CaSO4 + H2O - Axit tác dụng với bazo tạo thành muối nước 0.25 H2SO4 + Ca(OH)2  CaSO4 + 2H2O - Axit tác dụng với kim loại tạo thành muối giải phóng khí hidro 0.25 2Fe + 6HCl  2FeCl3 + 3H2 - Axit tác dụng với muối tạo thành muối axit H2SO4 + BaCl2  BaSO4 + 2HCl 0.25 b Khi axit gặp nước xảy trình hidrat hóa, đồng thời tỏa lượng nhiệt lớn Axit đặc lại nặng nước nên cho nước vào axit nước lên mặt axit, nhiệt tỏa làm cho axit 0.75 sôi mãnh liệt bắn tung tóa gây nguy hiểm Nếu TCHH phương trình sẽʂkhông chấm điểm phần Câu Học sinh nhận biết viết phương trình xảy 2.0 Câu 2Na + 2H2O  2NaOH + H2 0.25 2NaOH + CO2  Na2CO3 + H2O 0.25 Na2CO3 + H2SO4  Na2SO4 + H2O + CO2 0.25 Na2SO4 + BaCl2  NaCl + BaSO4 0.25 Câu Trước thải phải có hệ thống lọc khí chứa Ca(OH)2 2.0 Câu Học sinh giải kết giáo viên chấm Tùy theo học 3.0 sinh có cách giải khác miễn kết cho điêm Trường THPT Kim Sơn C ĐỀ THI BÁN KỲ 2. MÔN TIẾNG ANH - KHỐI 12 Thời gian làm bài: 45 phút (Không kể thời gian phát dề) Họ và tên: Lớp: Số báo danh: Số phách: Phòng thi số: I. Choose the word whose underlined part is pronounced differently from the others 1. A. called B. passed C. talked D. washed 2. A. repeats B. coughs C. amuses D. attacks 3. A. hour B. host C. honest D. honor II. . Choose the word whose stress pattern is different from the others. 1. A. section B. status C. project D. produce 2. A. interest B. intelligent C. computer D. dependent III. Put the verbs in the correct forms. 1. He was often made (drink) milk by his mother. 2. If I (lose) my passport, I’ll be in trouble. 3. After she (return) home, she (cook) herself a dinner. 4. When I last (see) Jane, she (try) to find a job. 5. I asked Barbara to let me (use) her car for the weekend. IV. Put the prepositions in the gaps. 1. It was really kind …….you to help those poor people. 2. France is famous ………its food and perfume. 3. While I am waiting ……the bus, I often listen……music. V. Put the articles in the gaps. 1. I’ve lost my watch. ………watch was given to me on ……… my 18 th birthday. 2. ……… Sahara of ……… Africa is the world’s largest desert. VI. Put ‘however, so, but, therefore to complete the sentences. 1. It was midnight, ………the restaurant was still open. 2. The waiter was not very nice. ……… , the food is delicious. 3. He told me not to do it, ……… I didn’t do it. 4. He was prepared for the test; ………., he managed to pass it. VII. Put the “ may, needn’t, must, mustn’t” to complete the sentences. 1. We’ve got plenty of time. We ………hurry. 2. You ……….keep it in a secret. You ………tell anyone else. 3. Why don’t you ask mike? He ……… know the boy’s address. VIII. Rewrite the following sentences using the suggestions. 1. Jane will complete the reports tomorrow.  The reports …………………………………………………………………………………………. 2. “ Do you remember to buy some flowers?”, said Peter to Tom. - Peter asked …………………………………………………………………………………………. 3. They took the man to the hospital. He was injured in the accident.  They took ……………………………………………………………………………………………. 4. If you can’t do this task, you can ask him for help. - Unless ……………………………………………………………………………………………… XIX. Choose the best option A, B, C or D to complete the passage. Rivers are one of the world’s most important (1) …… resources. Many cities are on large rivers and almost every country (2) ………at least one river that plays an important part in the lives of its people. Besides transportation, rivers (3) ……… people with food and water. To get water for crops, a (4) ……….is built across a river. People can use water not only to irrigate but also to make electricity. However, several rivers are polluted when industries develop. It is necessary to keep rivers (5) ……….if people want to get benefits of the natural resources. ĐÁP ÁN ĐỀ THI BK 2 LỚP 12 I. 0,2 đ / câu = 0.6 đ 1. A 2. C 3. B II. 0,2 đ / câu = 0.4 đ 1. D 2. A III. 0.25 đ / 1 ý = 1.75 đ 1. to drink 2. lose 3. had returned, cooked 4. saw, was trying 5. use IV. 0,25 x 4 = 1 đ 1. of 2. for 3. for, to V. 0,25 x 4 = 1 đ 1. the – x 2. the – x VI. 0.25 x 4 = 1 đ 1. but 2. However 3. so 4. therefore VII. 0.25 x 4 = 1đ 1. needn’t 2. must – mustn’t 3. may VIII. 0.5 x 4 = 2 đ 1. The report will be completed by Jane tomorrow. 2. Peter asked tom if he remembered to buy some flowers. 3. They took the man who was injured in the accident to the hospital. Or they took the man injured in the accident to the hospital. 4. Unless you can do this task, you can ask him for help. 1. A. nature B. nation C. naturally D. natural 2. A. having B. has C. have D. is 3. A. provides B. provision C. providing D. provide 4. A. pool B. well C. pond D. dam 5. A. dirt B. clean C. to clean D. dirty VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ KIỂM TRA HKII, NĂM HỌC Trường THPT Kim Sơn C ĐỀ THI BÁN KỲ 2. MÔN TIẾNG ANH - KHỐI 12 Thời gian làm bài: 45 phút (Không kể thời gian phát dề) Họ và tên: Lớp: Số báo danh: Số phách: Phòng thi số: I. Choose the word whose underlined part is pronounced differently from the others 1. A. called B. passed C. talked D. washed 2. A. repeats B. coughs C. amuses D. attacks 3. A. hour B. host C. honest D. honor II. . Choose the word whose stress pattern is different from the others. 1. A. section B. status C. project D. produce 2. A. interest B. intelligent C. computer D. dependent III. Put the verbs in the correct forms. 1. He was often made (drink) milk by his mother. 2. If I (lose) my passport, I’ll be in trouble. 3. After she (return) home, she (cook) herself a dinner. 4. When I last (see) Jane, she (try) to find a job. 5. I asked Barbara to let me (use) her car for the weekend. IV. Put the prepositions in the gaps. 1. It was really kind …….you to help those poor people. 2. France is famous ………its food and perfume. 3. While I am waiting ……the bus, I often listen……music. V. Put the articles in the gaps. 1. I’ve lost my watch. ………watch was given to me on ……… my 18 th birthday. 2. ……… Sahara of ……… Africa is the world’s largest desert. VI. Put ‘however, so, but, therefore to complete the sentences. 1. It was midnight, ………the restaurant was still open. 2. The waiter was not very nice. ……… , the food is delicious. 3. He told me not to do it, ……… I didn’t do it. 4. He was prepared for the test; ………., he managed to pass it. VII. Put the “ may, needn’t, must, mustn’t” to complete the sentences. 1. We’ve got plenty of time. We ………hurry. 2. You ……….keep it in a secret. You ………tell anyone else. 3. Why don’t you ask mike? He ……… know the boy’s address. VIII. Rewrite the following sentences using the suggestions. 1. Jane will complete the reports tomorrow.  The reports …………………………………………………………………………………………. 2. “ Do you remember to buy some flowers?”, said Peter to Tom. - Peter asked …………………………………………………………………………………………. 3. They took the man to the hospital. He was injured in the accident.  They took ……………………………………………………………………………………………. 4. If you can’t do this task, you can ask him for help. - Unless ……………………………………………………………………………………………… XIX. Choose the best option A, B, C or D to complete the passage. Rivers are one of the world’s most important (1) …… resources. Many cities are on large rivers and almost every country (2) ………at least one river that plays an important part in the lives of its people. Besides transportation, rivers (3) ……… people with food and water. To get water for crops, a (4) ……….is built across a river. People can use water not only to irrigate but also to make electricity. However, several rivers are polluted when industries develop. It is necessary to keep rivers (5) ……….if people want to get benefits of the natural resources. ĐÁP ÁN ĐỀ THI BK 2 LỚP 12 I. 0,2 đ / câu = 0.6 đ 1. A 2. C 3. B II. 0,2 đ / câu = 0.4 đ 1. D 2. A III. 0.25 đ / 1 ý = 1.75 đ 1. to drink 2. lose 3. had returned, cooked 4. saw, was trying 5. use IV. 0,25 x 4 = 1 đ 1. of 2. for 3. for, to V. 0,25 x 4 = 1 đ 1. the – x 2. the – x VI. 0.25 x 4 = 1 đ 1. but 2. However 3. so 4. therefore VII. 0.25 x 4 = 1đ 1. needn’t 2. must – mustn’t 3. may VIII. 0.5 x 4 = 2 đ 1. The report will be completed by Jane tomorrow. 2. Peter asked tom if he remembered to buy some flowers. 3. They took the man who was injured in the accident to the hospital. Or they took the man injured in the accident to the hospital. 4. Unless you can do this task, you can ask him for help. 1. A. nature B. nation C. naturally D. natural 2. A. having B. has C. have D. is 3. A. provides B. provision C. providing D. provide 4. A. pool B. well C. pond D. dam 5. A. dirt B. clean C. to clean D. dirty VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ KIỂM TRA HKII, NĂM HỌC Trường THPT Kim Sơn C ĐỀ THI BÁN KỲ 2. MÔN TIẾNG ANH - KHỐI 12 Thời gian làm bài: 45 phút (Không kể thời gian phát dề) Họ và tên: Lớp: Số báo danh: Số phách: Phòng thi số: I. Choose the word whose underlined part is pronounced differently from the others 1. A. called B. passed C. talked D. washed 2. A. repeats B. coughs C. amuses D. attacks 3. A. hour B. host C. honest D. honor II. . Choose the word whose stress pattern is different from the others. 1. A. section B. status C. project D. produce 2. A. interest B. intelligent C. computer D. dependent III. Put the verbs in the correct forms. 1. He was often made (drink) milk by his mother. 2. If I (lose) my passport, I’ll be in trouble. 3. After she (return) home, she (cook) herself a dinner. 4. When I last (see) Jane, she (try) to find a job. 5. I asked Barbara to let me (use) her car for the weekend. IV. Put the prepositions in the gaps. 1. It was really kind …….you to help those poor people. 2. France is famous ………its food and perfume. 3. While I am waiting ……the bus, I often listen……music. V. Put the articles in the gaps. 1. I’ve lost my watch. ………watch was given to me on ……… my 18 th birthday. 2. ……… Sahara of ……… Africa is the world’s largest desert. VI. Put ‘however, so, but, therefore to complete the sentences. 1. It was midnight, ………the restaurant was still open. 2. The waiter was not very nice. ……… , the food is delicious. 3. He told me not to do it, ……… I didn’t do it. 4. He was prepared for the test; ………., he managed to pass it. VII. Put the “ may, needn’t, must, mustn’t” to complete the sentences. 1. We’ve got plenty of time. We ………hurry. 2. You ……….keep it in a secret. You ………tell anyone else. 3. Why don’t you ask mike? He ……… know the boy’s address. VIII. Rewrite the following sentences using the suggestions. 1. Jane will complete the reports tomorrow.  The reports …………………………………………………………………………………………. 2. “ Do you remember to buy some flowers?”, said Peter to Tom. - Peter asked …………………………………………………………………………………………. 3. They took the man to the hospital. He was injured in the accident.  They took ……………………………………………………………………………………………. 4. If you can’t do this task, you can ask him for help. - Unless ……………………………………………………………………………………………… XIX. Choose the best option A, B, C or D to complete the passage. Rivers are one of the world’s most important (1) …… resources. Many cities are on large rivers and almost every country (2) ………at least one river that plays an important part in the lives of its people. Besides transportation, rivers (3) ……… people with food and water. To get water for crops, a (4) ……….is built across a river. People can use water not only to irrigate but also to make electricity. However, several rivers are polluted when industries develop. It is necessary to keep rivers (5) ……….if people want to get benefits of the natural resources. ĐÁP ÁN ĐỀ THI BK 2 LỚP 12 I. 0,2 đ / câu = 0.6 đ 1. A 2. C 3. B II. 0,2 đ / câu = 0.4 đ 1. D 2. A III. 0.25 đ / 1 ý = 1.75 đ 1. to drink 2. lose 3. had returned, cooked 4. saw, was trying 5. use IV. 0,25 x 4 = 1 đ 1. of 2. for 3. for, to V. 0,25 x 4 = 1 đ 1. the – x 2. the – x VI. 0.25 x 4 = 1 đ 1. but 2. However 3. so 4. therefore VII. 0.25 x 4 = 1đ 1. needn’t 2. must – mustn’t 3. may VIII. 0.5 x 4 = 2 đ 1. The report will be completed by Jane tomorrow. 2. Peter asked tom if he remembered to buy some flowers. 3. They took the man who was injured in the accident to the hospital. Or they took the man injured in the accident to the hospital. 4. Unless you can do this task, you can ask him for help. 1. A. nature B. nation C. naturally D. natural 2. A. having B. has C. have D. is 3. A. provides B. provision C. providing D. provide 4. A. pool B. well C. pond D. dam 5. A. dirt B. clean C. to clean D. dirty VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ KIỂM TRA HKII, NĂM HỌC Trường THPT Kim Sơn C ĐỀ THI BÁN KỲ 2. MÔN TIẾNG ANH - KHỐI 12 Thời gian làm bài: 45 phút (Không kể thời gian phát dề) Họ và tên: Lớp: Số báo danh: Số phách: Phòng thi số: I. Choose the word whose underlined part is pronounced differently from the others 1. A. called B. passed C. talked D. washed 2. A. repeats B. coughs C. amuses D. attacks 3. A. hour B. host C. honest D. honor II. . Choose the word whose stress pattern is different from the others. 1. A. section B. status C. project D. produce 2. A. interest B. intelligent C. computer D. dependent III. Put the verbs in the correct forms. 1. He was often made (drink) milk by his mother. 2. If I (lose) my passport, I’ll be in trouble. 3. After she (return) home, she (cook) herself a dinner. 4. When I last (see) Jane, she (try) to find a job. 5. I asked Barbara to let me (use) her car for the weekend. IV. Put the prepositions in the gaps. 1. It was really kind …….you to help those poor people. 2. France is famous ………its food and perfume. 3. While I am waiting ……the bus, I often listen……music. V. Put the articles in the gaps. 1. I’ve lost my watch. ………watch was given to me on ……… my 18 th birthday. 2. ……… Sahara of ……… Africa is the world’s largest desert. VI. Put ‘however, so, but, therefore to complete the sentences. 1. It was midnight, ………the restaurant was still open. 2. The waiter was not very nice. ……… , the food is delicious. 3. He told me not to do it, ……… I didn’t do it. 4. He was prepared for the test; ………., he managed to pass it. VII. Put the “ may, needn’t, must, mustn’t” to complete the sentences. 1. We’ve got plenty of time. We ………hurry. 2. You ……….keep it in a secret. You ………tell anyone else. 3. Why don’t you ask mike? He ……… know the boy’s address. VIII. Rewrite the following sentences using the suggestions. 1. Jane will complete the reports tomorrow.  The reports …………………………………………………………………………………………. 2. “ Do you remember to buy some flowers?”, said Peter to Tom. - Peter asked …………………………………………………………………………………………. 3. They took the man to the hospital. He was injured in the accident.  They took ……………………………………………………………………………………………. 4. If you can’t do this task, you can ask him for help. - Unless ……………………………………………………………………………………………… XIX. Choose the best option A, B, C or D to complete the passage. Rivers are one of the world’s most important (1) …… resources. Many cities are on large rivers and almost every country (2) ………at least one river that plays an important part in the lives of its people. Besides transportation, rivers (3) ……… people with food and water. To get water for crops, a (4) ……….is built across a river. People can use water not only to irrigate but also to make electricity. However, several rivers are polluted when industries develop. It is necessary to keep rivers (5) ……….if people want to get benefits of the natural resources. ĐÁP ÁN ĐỀ THI BK 2 LỚP 12 I. 0,2 đ / câu = 0.6 đ 1. A 2. C 3. B II. 0,2 đ / câu = 0.4 đ 1. D 2. A III. 0.25 đ / 1 ý = 1.75 đ 1. to drink 2. lose 3. had returned, cooked 4. saw, was trying 5. use IV. 0,25 x 4 = 1 đ 1. of 2. for 3. for, to V. 0,25 x 4 = 1 đ 1. the – x 2. the – x VI. 0.25 x 4 = 1 đ 1. but 2. However 3. so 4. therefore VII. 0.25 x 4 = 1đ 1. needn’t 2. must – mustn’t 3. may VIII. 0.5 x 4 = 2 đ 1. The report will be completed by Jane tomorrow. 2. Peter asked tom if he remembered to buy some flowers. 3. They took the man who was injured in the accident to the hospital. Or they took the man injured in the accident to the hospital. 4. Unless you can do this task, you can ask him for help. 1. A. nature B. nation C. naturally D. natural 2. A. having B. has C. have D. is 3. A. provides B. provision C. providing D. provide 4. A. pool B. well C. pond D. dam 5. A. dirt B. clean C. to clean D. dirty VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí PHÒNG GIÁO DỤC VÀ ĐÀO TẠO ĐỀ KIỂM TRA HKII, NĂM HỌC ...VnDoc - Tải tài liệu, văn pháp luật, biểu mẫu miễn phí ĐÁP ÁN ĐỀ THI HỌC KÌ MÔN HÓA HỌC LỚP Câu a TCHH axit: - Axit làm đổi máu quỳ tím thành màu đỏ 0.25 - Axit tác dụng với oxit... CaSO4 + H2O - Axit tác dụng với bazo tạo thành muối nước 0.25 H2SO4 + Ca(OH)2  CaSO4 + 2H2O - Axit tác dụng với kim loại tạo thành muối giải phóng khí hidro 0.25 2Fe + 6HCl  2FeCl3 + 3H2 - Axit... + BaSO4 0.25 Câu Trước thải phải có hệ thống lọc khí chứa Ca(OH)2 2.0 Câu Học sinh giải kết giáo viên chấm Tùy theo học 3.0 sinh có cách giải khác miễn kết cho điêm