电力电缆敷设时,在电缆终端头、中间头处应预留的备用长度,高压电缆为()m。
A、15
B、25
C、3
D、0.5
参考答案:D
- My friend has achieved his goal after years of hard work. - Great! ________.
A.One tree can't make a forest
B.Where there is a will, there is a way
C.Many hands make light work
D.A friend in need is a friend indeed
具有止血作用的药物是()
A.鹿角
B.海马
C.鹿角胶
D.续断
E.冬虫夏草