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【单选题】
同一个信道在同一时间,能够进行双向数据传输的通讯方式是A.
以下都错
B.
C.
全双工
D.
半双工
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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】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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