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搜题/搜资源
【单选题】【消耗次数:1】
Where is my pen? I________it.
①
might lose
②
would have lost
③
should have lost
④
must have lost
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I have lost my white hat. I______ it somewhere.
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must be dropping
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must have dropped
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must have been dropped
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must drop
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was not planned
②
were not planned
③
would not be planned
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had not been planned
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make out for
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keep up with
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The millions of calculations involved, ____ by hand, would have lost all practical value by the time they were finished.
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had they been done
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they had been done
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having been done
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The millions of circulations involved, _____ by hand, would have lost all practical value by the time they were finished.
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The millions of circulations involved, _____ by hand, would have lost all practical value by the time they were finished.
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高于10μg/ml时,按零级动力学消除
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负性肌力作用 ,负性频率作用,负性传导作用
②
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