分布式电源采用专线方式接入时,()线路可不设或停用重合闸。
A.公用
B.线路分支
C.末端线路
D.专线
参考答案:D
用括号内所给单词的适当形式填空。
1. She is _______ (walk) along the river with her friends.
2. Last night my father _______ (arrive) in New York.
3. If you want _______ (go) to the station, you'd better walk there, it's very close from here.
4. _______ (turn) left, and you can find the Bank of China.
5. I'm new here, and I don't know how _______ (get) there.
有下列几何体:(1)圆柱;(2)正方体;(3)棱柱;(4)球;(5)圆锥;(6)长方体.则这些几何体中截面可能是圆的有[ ]
A.2种
B.3种
C.4种
D.5种