工作面支架应做到不挤、不咬。
参考答案:对
下列哪几项能提示肺痈逆证
A.饮食少进
B.身热不退
C.溃后音嘎无力
D.咯痰腥臭异常
E.爪甲青紫带弯
The day before yesterday the police including one officer ____ searching for the murder in that mountain.[ ]
A. is
B. were
C. are
D. was