问题
单项选择题
CRH1A型动车组的每个网侧变流器的交流侧统主变压器的次边绕组连接,并在()。
A.直流侧串联
B.直流侧并联
C.交流侧串联
D.直流侧并联
答案
参考答案:B
CRH1A型动车组的每个网侧变流器的交流侧统主变压器的次边绕组连接,并在()。
A.直流侧串联
B.直流侧并联
C.交流侧串联
D.直流侧并联
参考答案:B
选词与短文填空(10分,多余一词)
小题2:You have an interesting book. Can you _______ it to us? 小题3:My parents _______ after dinner every day. 小题4:I like the fish. It _______ good. 小题5:Mr. Smith often _______ his car to work. |