强电集中控制的电源是采用()V交流电。
A.110;
B.220;
C.380
参考答案:B
_____ mothers work in the same hospital.[ ]
A. Tim and Peter's
B. Tim's and Peter
C. Tim's and Peter's
D. Tim and Peter
《红楼梦》终因宝玉“调戏”而投井的丫环是()