摆动相占步行周期的()
A.30%
B.40%
C.50%
D.60%
E.70%
参考答案:B
There will be a heavy storm ___________ this evening.
A.with thunder and lighting
B.had thunder and lighting
C.had thunder and lightning
D.with thunder and lightning
停放机车时不得停入(),更不得停压在()。