皮皮学，免费搜题
登录
搜题
【多选题】
关于直流发电机工作过程的描述，正确的是（ ）。A.
励磁绕组通入直流电，产生恒定的励磁磁场
B.
原动机拖动电枢旋转，电枢导体切割励磁磁场中的磁力线
C.
在电枢导体中感应出电动势，并产生交变的感应电流
D.
电刷两端输出的是直流电动势
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】He often __ __ late in the forest. It _____ me very much.,
A.
stayed…worried
B.
staied… worried
C.
stayed…worryed
【简答题】Jim is an English boy. He comes to China with his father and mother.They come here to work. Jim comes here to study. He is in No.5 Middle School.He gets up early every day.He isn’t late for school.He ...
【简答题】根据句意及汉语提示完成下列句子 1. —Why is he often late for school? —Sorry, I don't know the ______（原因）． 2. Would you like some____（甜食）? 3. Do you like apples or____（草莓）? 4. There are many____（特色菜）in that restaurant...
【单选题】He often ( ) late in the forest. It ( ) me very much.
A.
stayed, worried
B.
staied, worried
C.
stayed, worryed
D.
staied, worried
【简答题】中职生在评价自己的职业生涯规划时,要始终围绕规划能否促进职业生涯的 ( )进行。
相关题目：