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参考答案:
举一反三
【多选题】整流器的作用是把三相同步交流发电机产生的( )电转换成( )电输出。
A.
交流
B.
直流
C.
低压
D.
高压
【单选题】下列箭头所指代表?
A.
棘突
B.
上关节突
C.
下关节突
D.
横突
【单选题】下列箭头所指代表?
A.
上关节突
B.
椎弓峡
C.
下关节突
D.
横突
【简答题】3 Complete the conversation with suitable words. A Hi, Mary, how are you? B Oh, not too bad, but I’m a bit c oncerned about my eye. A I’m sorry to hear that. What’s the matter? B Well,...
【简答题】Sentence Patterns Rewrite the following sentences by following the model sentence pattern. Attention: We use "otherwise" after mentioning a situation or telling someone to do something, in order to sa...
【单选题】听力原文:W: I'm going away to the seaside for a few days and I'd like you to keep an eye on my home while I'm away. I do not know whether you can help me with this. This really troubles me a lot. M: Certa...
A.
On the line.
B.
On the plane.
C.
In the restaurant.
D.
In the police office.
【单选题】下列箭头所指代表?
A.
棘突
B.
上关节突
C.
下关节突
D.
横突
【简答题】This subsection is rhetorically useful because it makes you more credible by indicating that the data presented is based on the fact that you have known thoroughly what has been done in the field. ( A...
【单选题】—Why did you leave without a word of warning to John? —But what ________ otherwise? He never listens to me. :]
A.
could I do
B.
must I have done
C.
could I have done
D.
should I d o [来源
【简答题】整流器的作用是把三相同步交流发电机产生的[填空(1)]电转换成[填空(2)]电输出,它一般用六个硅二极管接成[填空(3)]整流电路。有些硅整流发电机还有2个[填空(4)]二极管和3个[填空(5)]二极管。A. 交流B. 直流C. 三相桥式D. 中性点E. 磁场
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