... tam giác hay không.Bi 4: Xõy dng chng trỡnh con tớnh: S = 1 + 2+ 3+ + nS = n1 31211++++Bi 5: Vit chng trỡnh tỡm Max ca 4 s a, b, c, d cú s dng hm tỡm Max hai s x, yBi 6: Vit chng ... mỏy. B. S b mt ht khi tt in t ngt.C.Khụng b mt khi tt mỏy hoc mt in. D. C A, B, C u sai.Cõu 6: gỏn tp kq.txt cho bin tp f1 ta s dng cõu lnhA. Assign(f1,D:\kq.txt);B. Assign(kq.txt=f1);C. ... x:=4; x:= x+5; End; BEGIN x:=0; TT; Write(x); END. -Kt qu in ra l:a) 4 b) 5 c) 9 d) 0 Cõu 16 : Khi chy chng trỡnh : Var x : Integer; Procedure TTA ; Var x : Integer; Begin x:= 7* 5;...