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50 examples of irregular verbs with present past and past participle

TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc

TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc

Tiếng anh

... recently, don’t you think?6 My grandfather died 30 years ago. I (never/meet) him.4. Fill in the blanks with modals: must - have to - ought to - used to1. You wash your hands before meals.2. It’s ... he doesn’t.6. Children drink a lot of milk.7. He has two modern cars. He be rich.8. My eyes are weak. I wear glasses.5. Give the correct tenses of the verbs in brackets:1. I’m sorry you’re ... she often appears on the stage as a young girl. Nhan will have to take part in a new play soon. This time she will be a girl of seventeen. In the play, she must appear in a bright red dress and...
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Tài liệu Present perfect and past doc

Tài liệu Present perfect and past doc

Kỹ năng nói tiếng Anh

... “Who it has been”) Vậy thì ai làm nhỉ.  Present perfect and past (2) Unit 14. Present perfect and past (2) A Chúng ta không dùng thì present perfect (I have done) khi nói về một thời ... và quá khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect ... “have you done”). Bạn đã bị như thế nào? Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc...
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Tài liệu The Acquisition of Drugs and Biologics for Chemical and Biological Warfare Defense - Department of Defense Interactions with the Food and Drug Administration doc

Tài liệu The Acquisition of Drugs and Biologics for Chemical and Biological Warfare Defense - Department of Defense Interactions with the Food and Drug Administration doc

Cao đẳng - Đại học

... have been reordered by the events of September 11,2001; officials in the Department of Health and Human Services and in the Department of Homeland Security; and the interested public.This research ... Drug ApplicationORA Office of Regulatory AffairsORO Office of Regional OperationsOSD Office of the Secretary of DefensePB pyridostigmine bromidePEO Program Executive OfficerPHSA Public Health ... the important but often overlookedissue of DoD-FDA interactions. RAND undertook this study for theOffice of the Deputy Assistant to the Secretary of Defense for Chemi-cal and Biological Defense...
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Care of the Patient with Retinal Detachment And Related Peripheral Vitreoretinal Disease docx

Care of the Patient with Retinal Detachment And Related Peripheral Vitreoretinal Disease docx

Sức khỏe trẻ em

... The mission of the profession of optometry is to fulfill the vision and eye care needs of the public through clinical care, research, and education, all of which enhance the quality of life. ... ophthalmoscopy and the greater the number and size of retinal folds in the detachment. In longstanding detachments, the scarring and contraction of the degenerating retina cause the folds to flatten and ... acuity The clearness of vision that depends upon the sharpness of focus of the retinal image and the integrity of the retina and visual pathway. Visual field The area or extent of space visible...
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QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot

QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot

Cơ khí - Chế tạo máy

... (problems P4 and P5). Finally, Chapter 8includes the proofs of all formal statements included in the book.Each chapter begins with a short motivation and overview and concludes with a summary and annotated ... low-pass filtering,the approximation is well within 10% in terms of the variances of y and ˆy and u and ˆu. More details on stochastic linearization and its accuracy are included in Chapter 2.It ... the notions of LPNI systems and QLC and listing theproblems addressed, the main technique of this book – the method of stochastic lin-earization – is briefly described and compared with the usual,...
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báo cáo hóa học:

báo cáo hóa học:" The experiences of people living with HIV/AIDS and of their direct informal caregivers in a resource-poor setting" doc

Hóa học - Dầu khí

... expression of emotional and psychological distress and ease the burden of living with HIV/AIDS [22,34,35].A system of informal and formal counselling and sup-port must be accessible to PLHIV and their ... gender issues, and instrumental.Due to the debilitating nature of HIV/AIDS, the physi-cal and medical needs of PLHIV are numerous and can beoverwhelming [20]. PLHIV cope with a variety of physicalproblems, ... alleviate some of these needs. The scope of this paper is to present theidentified needs of the PLHIV and their DICGs.MethodsPurposeThe purpose of the current study was to explore and describe...
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Báo cáo hóa học:

Báo cáo hóa học: " Real-time detection of musical onsets with linear prediction and sinusoidal modeling" pot

Hóa học - Dầu khí

... number of correctly detected onsets, fpis the numb er of false positives (detected onsets with nomatching reference onset), and fnis the number of falsenegatives (reference onsets with no ... phase to the [-π, π]range, and (k, n) is the phase of the kthbininthenth frame.If R(k, n) and j (k, n) are the actual values of the magni-tude and phase, respectively, of bin k in frame n,thenthe ... models of sound based on the separation of theaudio signal into a combination of sinusoids and n oise[22], and further into combinations of sinusoids, noise and transients [23]. Although primarily...
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báo cáo hóa học:

báo cáo hóa học: " Real-time detection of musical onsets with linear prediction and sinusoidal modeling" pptx

Hóa học - Dầu khí

... cache and a bus speed of 1.07 GHz, providing a theoreticalbest-case performance of 22.4 GFLOPS [32]. TheADSP-TS201S has a clock speed of 600 MHz and abest-case performance of 3.6 GFLOPS [33], and ... all of the previously described algo-rithms, with the results being given in Sections 5.2 and 5.3, and then discussed in Section 5.4. Th is evaluationincludes details of the performance of all ... number of correctly detected onsets, fpis the numb er of false positives (detected onsets with nomatching reference onset), and fnis the number of falsenegatives (reference onsets with no...
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Báo cáo hóa học:

Báo cáo hóa học: " Enhancements of thermal conductivities with Cu, CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a water chiller syste" docx

Hóa học - Dầu khí

... viscosity of water and MWNT nanofluid decreases with the increasing of temperature. The measured viscos-ityoftapwateris0.8cpsat23.5°CandthatofMWNTnanofluid is 1.0 cps at 24.1°C. On the other hand, ... 6:297http://www.nanoscalereslett.com/content/6/1/297Page 7 of 13 NANO EXPRESS Open AccessEnhancements of thermal conductivities with Cu,CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a waterchiller ... application of nanofluid on cooling, thenanofluid can be used for refrigerant medium of air condi-tioning and refrigeration (AC&R). The nano-refrigerant isone kind of nanofluid with host...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article Throughput of Cellular Systems with Conferencing Mobiles and Cooperative Base Stations" pot

Hóa học - Dầu khí

... wereconsidered, namely half-duplex and full-duplex amplify- and- forward in [13, 15], respectively, and decode -and- forward in [14], and the respective merits of multicellprocessing and MS cooperative transmission ... for the linear Wyner model with conferencing MSs is presented for both cases of inter-cell conferencing with intracell TDMA and intracellconferencing (Propositions 3 and 5). The consideredtransmission ... scenario of interest,which consists of a modification of the linear Wyner model with intracell TDMA where intercell conferencing channelsare present. 2.1. System modelWe consider the uplink of a...
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Báo cáo hóa học:

Báo cáo hóa học: " Characterization of Titania Incorporated with Alumina Nanocrystals and Their Impacts on Electrical Hysteresis and Photoluminescence" pot

Hóa học - Dầu khí

... of the patterns fromtwo pieces of nanocrystals. Both of interplanes spacings,whose values are about 0.237 nm and lie at an angle of near to 60°, are of regular parallelogram with a center and corresponding ... of China (Grant number of 60576023 and 60636010), the State Key Program for Basic Research of China(2004CB619004), the State Key Program for Science and Technology of China (2009ZX02101-4) and ... reactionprocess with pure starting materials of Al2O3 and TiO2in amole ratio of 1.5:1. The mixed powder in this ratio wasball-milled for 24 h, and then sintered at 1 ,500 °C for 7 hto...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article Three-Dimensional SPIHT Coding of Volume Images with Random Access and Resolution Scalability" doc

Hóa học - Dầu khí

... 3.47 3.45 3.29 3.16200 1501 0 0500 Bands01000200030004000Radiance(c)Spectrumfrom2200 1501 0 0500 Bands(b)Spectrumfrom101000200030004000 500 0Radiance200 1501 0 0500 Bands(e)Spectrumfrom40200040006000Radiance200 1501 0 050 ... important to ease of access and processing of the data and were not introduced intoSPIHT previously. Coding different areas of the imagetransform separately enable random access and region of interest ... threedimensions with random access decodability that retainsspatial and quality scalability requires significant changes of the transform and tree structure and search mode, and theaddition of a post-compression...
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Unit 13. Present perfect and past (1) doc

Unit 13. Present perfect and past (1) doc

Kỹ năng nói tiếng Anh

... ai làm nhỉ. He lost his key (past simple) but now he has found it ( present perfect). Anh ấy đã làm mất chìa khóa nhưng bây giờ anh ấy đã tìm ra. Thì present perfect là thì hiện tại hoàn ... viết sách). C Chúng ta dùng thì present perfect để đưa ra những thông tin mới (xem UNIT 7). Nhưng nếu chúng ta tiếp tục nói về điều đó, chúng ta dùng thì past simple: A: Ow! I’ve burnt myself. ... but now he has shaved it off. (= he doesn’t have a beard now) Jack đã để râu nhưng bây giờ anh ấy đã cạo hết. (= bây giờ anh ấy không có râu) They went out after lunch and they’ve just come back....
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Unit 14. Present perfect and past (2) doc

Unit 14. Present perfect and past (2) doc

Kỹ năng nói tiếng Anh

... và quá khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect ... Ví dụ như: Today, this week, since 1985. Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc ... Luân đôn. Anh ấy đã sống ở đó được bảy năm rồi. Lan lived in Scotland for ten years. Now he lives in London. Ian đã sống ở Scotland được mười năm. Bây giờ anh ấy đang sống ở Luân đôn. I have...
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Báo cáo khoa học:

Báo cáo khoa học: " Associations between the clinical signs of chronic endometritis with ovarian cysts and body condition loss in German Holstein Friesian cows" docx

Báo cáo khoa học

... were categorized:ㆍType of discharge (TYPEDIS): Purulent (≥ 50% pus) or mucopurulent with flakes of pus (< 50% pus)ㆍSmell of discharge (SMELL): Fetid or neutral smellㆍSize of uterus (USIZE): Uterus ... 216, 164-165. Associations of endometritis with ovarian cysts and body condition score loss 339Tab l e 1 . F-Values, levels of significance ,and least squares means of the variables remaining ... discharge (p = 0.02) and having a ML100 of more than 3,824 kg (p = 0.001). For OC, the SMELL by TYPEDIS and the PARITY by TYPEDIS interactions were important with p-values of 0.04 and 0.02, respectively....
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