胶带输送机接班时,检查者站在胶带电机一侧,逐一检查()的完好情况。
A.电机
B.减速器
C.泵站
D.对轮
参考答案:A, B, D
—What do you think of that tea set as a gift for Mary’s birthday?
— .
A.My pleasure
B.I think it’s a Chinese style
C.Not bad
D.Let me think it over
()是输送液体的机械。
A.泵
B.风机
C.电动机
D.压缩机