为什么在操作有转动部份的机器时,职工不宜戴棉纱手套?
A.棉纱手套会被损坏
B.棉纱手套容易缠上机器的转动部分
C.棉纱手套容易造成皮肤敏感
参考答案:B
Long long time ago, there was a mountain. At the top of the mountain___________, in which an old monk used to tell stories.
A.a temple stood
B.is there a temple
C.stood a temple
D.a temple was there
水工隧洞作用有()
A.有时可用于通航
B.引水发电,或为灌溉、供水输水
C.放空水库,用于人防或检修建筑物
D.在水利枢纽施工导流期用来导流