工厂企业变电所按其在供电系统中的作用和地位分为（）。
参考答案：总降压变电所和车间变电所
—Shall we raise some money for children of Yushu, Qinghai Province?
—___.
A．I see.
B．It’s a pleasure.
C．I don’t believe it.
D．That’s a good idea.
Let him _____. [ ]
A. go to home
B. go home
C. to go home
D. goes home
