设计速度（Design Speed）
参考答案：
指在道路交通与气候条件良好的情况下，仅受道路条件限制所能保持的最大安全车速。
- What did the policeman say to you, Gao Ming?
- He told me ______ my purse in the e-bicycle basket. It's too dangerous.[ ]
A. not put
B. to put
C. don't put
D. not to put
电力变压器的容量为４００ＫＶA、则其阻抗电压约为（）．
A、３．２５％
B、３．８％
C、２．１５％
D、４．１２％
