更多"[单选题]I saw Jeff in the park.He ___"的相关试题:
[单选题] I saw my dog ________ a cat yesterday.
A.run away
B.run
C.set out
D.run after
[单选题] I ________ and saw a plane in the sky.
A.looked at
B.looked for
C.look about
D.looked up
[单选题]“saw kinfe”是指( )。
A.锯刀
B.抹刀
C.剪刀
D.面包刀
[简答题] The friend saw everything but did not say a single word.
[单选题]We saw him _______ the white building and go upstairs.
A.enter
B.entering
C.to enter
D.entered
[单选题]Soon she saw the boy______in the crowd. ( )(
A. disappear
B. to disappear
C. disappeared
D. be disappearing
[单选题] 两个正弦交流电流i1和i2的有效值I1=I2=4A。i1与i2相加后总电流的有效值仍为4A，则它们之间的相位差是（ ）。
A.180°
B.120°
C.90°
D.60°
[单选题]有以下程序
main()
{int i；
for(i=1;i<=40;i++)
{if(i++%5==0)
if (++i%8==0) printf("%d",i) ;}
printf("\n") ;} 执行后的输出结果是（）。
A.5
B.24
C.32
D.40
[简答题]I promise you that I will do everything I can to help him.
[单选题]两个正弦交流电流i1和i2的有效值I1=I2=4A。i1与i2相加后总电流的有效值仍为4A，则它们之间的相位差是（ ）
A.180°
B.120°
C.90°
D.60°
[单选题]程序段s=i=0；do {i=i+1； s=s+i；}while(i<=n)；的时间复杂度为（ ）。
A.O(n)
B.O(nlog2n)
C.O(n2)
D.O(n3/2)
[单选题] —I will have a match tomorrow. I hope I will win.— . ( )
A. Good luck
B. No idea
C. That’s such a pity
D. It’s all right
[单选题]main()
{ int x=3,i;
for(i=0;i<3;i++) printf("%d",f(x));
}
int f(int a)
{ int b=0;
static c=3;
b++;c++;
return(a+b+c);
}
执行此程序后屏幕上显示的结果是（）。
A.8 10 10
B.7 9 10
C.8 9 11
D.8 9 10
[单选题]执行语句.for(i=1;i<4;i++);后,变量i的值是( )
A.3
B.4
C.5
D.不定
[判断题]波形图上病害波形超过I级或 （-I）界线又回落到I级或（-I）界线为一处病害。
A.正确
B.错误
[判断题]体力劳动强度按劳动强度指数I大小分为四级，分别为：I级（I≤15);II级（I=15-20);III级（I=20-25)；IV级（I>25)。()
A.正确
B.错误
