皮皮学，免费搜题
登录
搜题
【单选题】
关于异步电动机的下列叙述正确的是 ______ 。A.
无论何种电机，启动时定子绕组必然产生旋转磁场，否则不能自行启动。
B.
三相异步电动机在工作时不可能作为发电机运行。
C.
一般来说若启动前三相异步电动机缺相，通电后仍可启动运行，但不能带额定负载。
D.
两相异步电动机不能自行启动。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】– I think the Internet is very helpful. – ( ).
A.
Yes, so do I
B.
That's a very good idea
C.
Neither do I
D.
I'd rather go surfing on it
【单选题】(Para. 9) I felt myself teetering backwards.
A.
I was very angry that I was expected to be a mother and caregiver by my mother-in-law and my husband.
B.
I was totally shocked to hear what I was told, so much so that I felt as if I was thrown off balance.
相关题目：