讽刺喜剧《升官图》的作者是()
参考答案:陈白尘
The policeman asked Mr. Smith .
A.what did his car look like
B.how was his car
C.how his car looks
D.what his car looked like
为了使机床达到热平衡状态必须使机床运转()。
A、15分钟以上
B、8
C、2
D、6