在同杆架设的多层电力线路上挂接地线时应()。
A、先挂低压后挂高压
B、先挂高压后挂低压
C、不分先后
参考答案:A
Although the entrance to the cave was very narrow, those visitors managed to________through it.
A.press
B.squeeze
C.break
D.cut
A.音乐B.别人C.秋天D.愿意E.安静F.一直
我喜欢听中国______。