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【单选题】
正弦量的三要素一个正弦量瞬时值的大小取决于()。A.
最大值、周期、
B.
最大值、角频率、
C.
有效值、角频率、
D.
有效值、频率、相位
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反馈参考答案：
举一反三
【简答题】It is not unusual to see your desk-mate yawn (打呵欠) as he complains that he didn't have a good sleep the night before. Many s don't get enough sleep because they have too much homework, which keeps...
【单选题】This was a (n) _______________ reaction, given the bitter hostility between the two countries.
A.
oblivious
B.
accidental
C.
predictable
D.
undesirable
【单选题】“大机器的有些部件是镍制的,有些是象牙做的,还有些是用水晶石挫成或锯成的。”这部时间机器的用途是什么?
A.
走进未来
B.
回到过去
C.
是走进未来还是过去还不能确定
D.
以上答案都不对
【单选题】We say that this was a(n) ______ of the agreement between us.
A.
pro
B.
violation
C.
trendy
D.
wardrobe
【单选题】In the sentence 'Often, the child becomes angry or complains when he does not get his way.' (Para.3), what does 'get his way' mean?
A.
Make himself understood.
B.
Gain what he wants.
C.
Have a friendly relationship with his parents.
D.
Find the way to his home.
【单选题】The spokesman said that this was a（n）____negotiation （谈判） because it solved a lot of problems between the two sides．
A.
attractive
B.
defensive
C.
protective
D.
productive
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