化学性突触传递的特征中,下列选项错误的是( )A.双向性传递 B.兴奋节律的改变 C.总和

化学性突触传递的特征中,下列选项错误的是( )A.双向性传递 B.兴奋节律的改变 C.总和

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光纤接续插入的非固有损耗与光缆的损耗有关与接续无关。()

光纤接续插入的非固有损耗与光缆的损耗有关与接续无关。()

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The Chief Checker reminded the Chief Officer ______ the dried turnips on top of the turpen

The Chief Checker reminded the Chief Officer ______ the dried turnips on top of the turpen

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The Chief Officer ______ told the stevedores to stow the cargo lot by lot.A.plainlyB.playf

The Chief Officer ______ told the stevedores to stow the cargo lot by lot.A.plainlyB.playf

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The test ______, we began our holiday. A. was finished B. finishing C. was finis

The test ______, we began our holiday. A. was finished B. finishing C. was finis

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