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【单选题】
当元件两端电压与通过电流取关联参考方向时,即为假设该元件( )功率; 取非关联参考方向时,即为假设该元件( )功率。A.
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B.
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举一反三
【单选题】Listening Section 1-10 (Note: There is only one correct answer.)
A.
In a post office.
B.
In a bookstore .
C.
In a bank .
D.
In a restaurant .
【简答题】剑1Test 1 Listening Section 1.docx
【单选题】Listening Section 1-9 (Note: There is only one correct answer.)
A.
It is more convenient to take a bus.
B.
It is worth the money taking a train .
C.
It is not always cheaper going by bus.
D.
It is faster to go to New York by train.
【单选题】Listening Section 1-6 (Note: There is only one correct answer.)
A.
It s location.
B.
It s price.
C.
Its comfort.
D.
Its distance .
【单选题】Listening Section1-1 (Note: There is only one correct answer.)
A.
The teacher delayed the meeting .
B.
The students will attend the meeting.
C.
There won ’ t be an exam this afternoon .
D.
The students will have a physics exam.
【单选题】Listening Section 1-7 (Note: There is only one correct answer.)
A.
Find a way to the park .
B.
Buy some roses from the market .
C.
Plant trees in the park .
D.
Go to the park to enjoy the flowers .
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