判断发电机转子绕组有无匝间短路中,可查发电机的()曲线。
A.负载特性
B.调整特性
C.短路特性
参考答案:C
Read the dialogue and choose. (选择适当的句子填空)
① I have a toothache.
②You look sad.
③ See the doctor and take some medicine.
A: How are you?__________
B: Yes, I failed the English test.
A: I'm sorry to hear that.
B: How about you?
A: I feel sad, too. _________
B: _________
A: Thank you. I will.
血海穴的作用包括()。
A、常用于月经不调、痛经等
B、常用于瘾疹、皮肤瘙痒、丹毒、膝内侧疼痛
C、以上都是
D、以上都不是