The new appointment of our president ______ from the very beginning of the next semester .
A. takes effect
B. takes place
C. takes turns
D. takes part
She can be easily hurt not because we are unfriendly but she's too ______ !
A. sensible
B. sensitive
C. reasonable
D. tough
引起疣的病毒为
A. 乳头瘤空泡病毒
B. 痘类病毒
C. 柯萨奇病毒
D. EB病毒
E. 传染性软疣性病毒
下列程序段的执行结果为 a=3 b=1 For I=1 To 3 f=a + b a=b b=f Print f Next I
A. 4 3 6
B. 4 5 9
C. 6 3 4
D. 7 2 8