—What did the policeman say to you just

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问题选择题

—What did the policeman say to you just now?

—He asked_________ when the accident happened. [ ]

A. what I was doing

B. what I did

C. what am I doing

D. what I am doing

答案

答案：A

判断题

钳形电流表在测量时，可带电进行转换量程。

填空题

下列程序运行后的输出结果是______。
main()
int x，a=1，b=2，c=3，d=4；
x=(a＜b)a:b；x=(x＜c)x:c；x=(d＞x)x:d；
printf("%d\n"，x)；