35KV的外电线路与施工现场机动车道交叉时,架空线最低点与路面的垂直距离至少为()。
A、6m
B、7m
C、8m
参考答案:B
防冻液的主要作用有()、()、()、()。
Young people always complain, more or less justly, that their parents are out of () with modern ways.
A. link
B. connection
C. association
D. touch