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【单选题】
某技术复杂，采购金额为1000万元的政府采购货物招标项目，其评标委员会的组成正确的是( )。A.
采购人代表1人，专家4人
B.
采购人代表2人，专家3人
C.
采购人代表2人，专家5人
D.
采购人代表1人，专家6人
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举一反三
【单选题】When_________why he was late, he made no answer.
A.
questioned
B.
questioning
C.
asking questions
D.
question
【简答题】结合专题一的教学内容或者收看央视有关建国七十年辉煌成就的相关影片,围绕 “ 辉煌七十年、奋斗新时代、做新时代的奋斗者 ” 这一主题,在超星学习通上写自己的新认识、新感悟、新体会( 300 字左右)
【简答题】小米手机通过网上售卖，这是一种（）商业模式。
【单选题】Electrical engineers have repeatedly demonstrated that the best solid-state amplifiers are indistinguishable from the best vacuum-tube amplifiers with respect to the characteristics commonly measured ...
A.
Many people cannot tell from listening to it whether a recording is being played with a very good solid-state amplifier or a very good vacuum-tube amplifier.
B.
The range of variation with respect to the quality of musical reproduction is greater for vacuum-tube amplifiers than for solid-state amplifiers.
C.
Some of the characteristics that are important in determining how music sounds to a listener cannot be measured.
D.
Solid-state amplifiers are more compact, use less power, and generate less heat than vacuum-tube amplifiers that produce a comparable volume of sound.
E.
Some vacuum-tube amplifiers are clearly superior to some solid-state amplifiers with respect to the characteristics commonly measured in the laboratory to evaluate the quality of an amplifier’s musical reproduction.
【简答题】5-85. 初次见面说___,长期未见说___。(两个答案之间用全角符号“,”隔开)
【简答题】A well-known English magazine invited five people to answer a series of questions. One of the questions is: Do you enjoy foreign food? Match the name of each person to one of the statements given belo...
【多选题】Which of the following are false statements regarding cross-field amplifiers (CFAs)?
A.
CFAs tend to have significant gain compared with other tube types.
B.
CFAs are characterized by relatively high additive phase noise.
C.
CFAs suffer from inherently narrow bandwidth capability.
D.
For a given amount of average output power, the CFA more cost-effective than Klystron.
【简答题】自己住家说“寒舍”,初次见面说“______”,长期未见说“________”。
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