根据我国相关国标，有屏蔽层结构的软电缆，允许弯曲半径应不小于电缆外径的（）倍。
A.4
B.6
C.10
D.12
参考答案：B
There ______ an interesting film this evening. [ ]
A. is going to be
B. is going to have
C. will have
D. is having
艺术摇滚有时也被称为（）。
A.实验摇滚
B.进步摇滚
C.新浪潮
D.第三流派
