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【单选题】
在电场中,无穷远处 ( ) 设为零电势点。A.
不能；
B.
可以。
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反馈参考答案：
举一反三
【单选题】—He was downloading reading materials from a website when the computer crashed. —_______ that he looked a little upset.
A.
No doubt
B.
No use
C.
No wonder
D.
No problem
【单选题】Which is true about music downloading?
A.
Music downloading services began two years ago.
B.
The British music industry is beginning to feel the benefits of music downloading.
C.
The fight against illegal downloading has finished.
D.
The public have been unhappy to join the new legal services.
【单选题】EMI'S downloading trial was between ______.
A.
the recording industry and on-line record companies
B.
'the recording industry and downloading-program operators
C.
EMI and on-line music providers
D.
EMI and MP3
【判断题】After downloading and installing the J2SE SDK, you can run Java applets and applications.
A.
正确
B.
错误
【简答题】油泵中有哪些标准件,哪些常用件,说明其作用
【单选题】EMI's downloading trial was between ______.
A.
the recording industry and on - line record companies
B.
the recording industry and downloading -program operators
C.
EMI and on -line music providers
D.
EMI and MP3
【判断题】After downloading the app, students also can search for the test centers and find open seats for the test.
A.
正确
B.
错误
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