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【单选题】
成本会计最基本的任务和中心环节是_____。A.
进行成本预测，编制成本计划
B.
审核和控制各项费用的支出
C.
参与企业的生产经营决策
D.
进行成本核算，提供实际成本的核算资料
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举一反三
【单选题】If you ________ hard, you ________ in the exam.
A.
worked/ wouldn't have failed
B.
had worked/wouldn't fail
C.
had worked/wouldn’t have failed
D.
worked/wouldn’t fail
【简答题】As you worked late yesterday, you ______ have come this morning. A. needn’t B. mayn’t C. can’t D. mustn’t
【简答题】It is necessary for you to have worked in this sector before.
【单选题】—Have you worked here since you graduated? —No, I ____________at a factory in Beijing for six years.
A.
would work
B.
have worked
C.
had worked
D.
worked
【单选题】He tried to join the army but ___ because of poor health.
A.
turned down
B.
was turned down
C.
turned out
D.
was turned off
【简答题】He tried to join the army but was __________ because of poor health．
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