---Let’s go and see a film. ---_________

当某一电力线路发生接地，距接地点愈近，跨步电压()。

A.不变

B.愈低

C.愈高

A parent group is discussing different types of punishment. The parents ask the nurse to discuss corporeal punishment. What would be the nurse’s response

A. "Corporeal punishment does not physically harm the child. "
B. "Corporeal punishment can result in children becoming accustomed to spanking. "
C. "Corporeal punishment can be beneficial in teaching children what they should do. "
D. "Corporeal punishment reinforces the idea that violence is not acceptable. "

各级政府及政府机构出现资金剩余时，可通过购买（）投资于证券市场。

A.政府债券

B.股份制银行发行的股票

C.可转换公司债券

D.金融债券

平面闸门由（）和门槽的预埋构件两部分组成。

A、活动的门叶结构

B、面板

C、梁格

D、行走支承

防止和消除机床振动的工艺方法有哪些？