控制柜的前面应提供不小于()的空间.
A.0.6×0.5m
B.0.5×0.5m
C.0.6×0.6m
D.0.8×0.8m
参考答案:A
Let’s meet __ the street corner at 7 tomorrow morning.
A.in
B.at
C.over
D.near
我国的强国之路是( )
A.民族创新
B.改革开放
C.四项基本原则
D.艰苦奋斗