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【单选题】
555定时器的TH端、TR端的电平分别大于2Vcc/3和Vcc/3时定时器的输出状态是( )。A.
0
B.
1
C.
原状态
D.
不确定
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【单选题】Until recently most historians spoke very critically of the Industrial Revolution. They 【B1】 that in the long run industrialization greatly raised the standard of living for the 【B2】 man. But they ins...
A.
admitted
B.
believed
C.
claimed
D.
predicted
【单选题】It is important to bear in mind that these financial consequences have, until very recently, ______ largely hidden.
A.
remain
B.
remained
C.
maintain
D.
maintained
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【单选题】Until recently most historians spoke very critically of the Industrial Revolution. They【31】that in the long run industrialization greatly raised the standard of living for the【32】man. But they insiste...
A.
admitted
B.
believed
C.
claimed
D.
predicted
【单选题】实行免抵退的生产企业的城建税计算公式应为( )
A.
应纳税额＝(増值税应纳税额+当期免抵税额十消费税)×适用税率
B.
应纳税额＝(实际缴纳增值税+消费税)×适用税率
C.
应纳税额＝(增值税十消费税)×适用税率
D.
以上都不是
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