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【判断题】
为防止因衰落引起的通信中断, 在信道设计中,必须使信号的电平留有足够的余量,以 使中断率小于规定指标。A.
正确
B.
错误
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举一反三
【多选题】An essay usually consists of ________.
A.
an introductory paragraph
B.
a main body
C.
a concluding paragraph
【单选题】This essay tells us that______.
A.
people usually dream in a NREM sleep
B.
people usually dream in an REM sleep
C.
people always remember what they have dreamed in an REM sleep
D.
people may have an REM sheep all night through
【多选题】下列关于“投标保证金”的说法正确的是( )。
A.
投标保证金可以以保兑支票、现金支票等方式递交，但不能以银行保函的方式递交
B.
一般不超过投标总价的2%
C.
最高不超过80万元人民币
D.
其有效期应超出投标有效期30天
E.
投标人不提交投标保证金的，其投标文件将被视为废标
【单选题】This essay tells us that
A.
people usually dream in a NREM sleep.
B.
people usually dream in an REM sleep.
C.
people always remember what they have dreamed in an REM sleep.
D.
people may have an REM sleep all night through.
【简答题】支出法核算GDP,就是从??出发,把??加总而计算出的该年内生产的最终产品的市场价值。
【简答题】Applicants are usually better off if they can write an essay that distinguishes them from the rest.
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