变压器若按相数分类,可分为()变压器()变压器。
参考答案:单相;三相
用所给单词的适当形式填空。
1. It's _ __ _ (sun) today. We had better climb Mountain Tai.
2. -Is it (snow) now?
-Yes. Look, everything is white.
3. Look! What your friends _(do)?
4. The boy _ (eat) ice cream there now.
5. Let's _ (play) computer games.
Win2000 Server安装时可以选择的许可证方式为()。
A.每客户方式
B.每服务器方式
C.每CPU方式
D.每内存方式