电子汽车衡日常使用时，车辆行驶上衡应控制车速（）km/h，缓慢刹车。

A.≤5

B.≤10

C.≤15

It's high time you had your hair cut; it's getting _____. [ ]

A. too much long

B. much too long 

C. long too much

D. too long much