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【单选题】
空气介质平行板电容器,充电后仍与电源保持相连,并在极板中间放入εr=2的电介质, 则电容器所带电荷量将( )。A.
增加一倍
B.
减少一半
C.
保持不变
D.
不能确定
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举一反三
【单选题】—What would you do if you had all the time in the world? —________.
A.
III could find another job, you know I'd take it in a minute.
B.
I would spend two thirds of my time with those people who are in great need of help.
C.
I will travel to other countries and do everything I like.
【简答题】Athlete(ANo，AName，A，Age，ATeam)，主键为ANo。 Item(INo，IName，ITime，IPlace)，主键为INo。 s(ANo，INo，Score，Credit)，主键为(ANo，INo)。
【简答题】-- Are you fond of playing computer s? -- Yes, I'm going to play them for another hour. （ ）
【单选题】— You need to believe that space tourism will grow and get cheaper. Maybe there is another option. — .
A.
How is it?
B.
What is it?
C.
Where is it?
【单选题】You should not humiliate her _______.
A.
public
B.
in public
C.
on public
D.
from public
【单选题】If you humiliate another person, do you make them feel (A) , or (B) about themselves?
A.
bad
B.
good
【单选题】If you humiliate another person, you make them feel ________ about themselves.
A.
bad
B.
good
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