![](https://lstatic.shangxueba.com/sxbzda/h5/images/m_q_title.png)
某三相异步电动机的铭牌如下:三相异步电动机 型号 Yl60L-4 功率 l5kW 频率 50Hz 电压 380V 电流 30.3A 接法 △ 转速 l 440r/min 温升 80℃ 绝缘等级 B 工作方式 连续 重量45kg 年 月 日 编号 ×X电机厂 由此可知该电动机()。
A.为鼠笼式异步电动机
B.额定转矩近似为99N·m
C.有4对磁极
D.可以采用Y一△降压起动
E.最高使用温度在160℃左右
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
A.为鼠笼式异步电动机
B.额定转矩近似为99N·m
C.有4对磁极
D.可以采用Y一△降压起动
E.最高使用温度在160℃左右
第1题
听力原文:M: What kind of music do you like?
W: I like pop music and rock music. But, rock music is my favorite.
Q: What kind of music does the woman like best?
(4)
A.Pop music.
B.Rock music.
C.Classical music.
D.Country music.
第2题
What kind of music does Ms. Colvin sing?
A.Pop
B.Rock
C.Country
D.Classical
第3题
What kind of music does the man like?
A.Classical music.
B.Pop music.
C.Light musi
第4题
A、Heavy mental
B、slight music
C、magic show
D、movies
第5题
What kind of music does the mail like best?
A.Light music.
B.English songs.
C.American songs.
第6题
What kind of music does the man like best?
A.Light music.
B.Any music.
C.Not mentioned.
第7题
What kind of music does the man like best?
A.Light music.
B.English songs.
C.American songs.
第8题
听力原文:M: I often listen to light music at home. What kind of music do you like ?
W: I really enjoy Chinese music.
What are they talking about?
A.Family.
B.Language.
C.Music.
第9题
What kind of music does the man like best?
A.Light music.
B.English songs.
C.American songs.
第10题
What kind of music does the man like best?
A.Light music.
B.English songs.
C.American songs.
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