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【单选题】
直流电机的电枢与励磁绕组的电源各自独立,这种励磁( )。
A.
他励
B.
并励
C.
串励
D.
复励
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举一反三
【单选题】--Can you use the computer? --_________
A.
I can use.
B.
Yes, I can send e-mails.
C.
No, I can.
【单选题】点火提前呈过大状态时,气体膨胀压力将 活塞向上运动,使汽油机有效功率减小。
A.
推动
B.
强迫
C.
阻碍
D.
抑制
【单选题】—You can use QQ to talk with Tom on the Internet. —I know. But can you tell me _____? [     ]
A.
what I can use it
B.
how I use it
C.
why can I use it
D.
when can I use it
【单选题】If you use _______, you can get a higher quality picture.
A.
wax 
B.
shame 
C.
goose 
D.
slides
【单选题】下丘脑视上核被损坏后,将出现下列哪种变化
A.
尿量增加,尿浓缩
B.
尿量增加,尿稀释
C.
尿量减少,尿稀释
D.
尿量减少,尿浓缩
E.
尿量不变,尿稀释
【简答题】Jenny: Are you sure you can use the pay phone?Black: ______
【单选题】--- We can use QQ to talk with each other on the Internet when you’re abroad. --- Really? But can you tell me _______?
A.
how I can use it   
B.
how can I use it  
C.
why can I use it
【单选题】—You can use MSN to talk with Kevin on the Internet. —I know, but can you tell me _______? [     ]
A.
what I can use it
B.
how can I use it
C.
why can I use it
D.
when I can use it
【简答题】You can save money each time you use it.
【单选题】--- You can use MSN to talk with Vivien on the Internet. --- I know. But can you tell me ________?
A.
when I can use it
B.
what I can use it
C.
why can I use it
D.
how can I use it
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