A.dredB.astonishedC.continuedD.frightened

A.dredB.astonishedC.continuedD.frightened

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What information coa we get from the first passage?A.tis the

What information coa we get from the first passage?A.tis the iet stoomn that aff

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A.heavy B.easy C. hardD.safe

A.heavy B.easy C. hardD.safe

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When something goes wrong,it can be very satisfying to say,“

When something goes wrong,it can be very satisfying to say,“Well,it’s so-and-so’

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伽利略曾设计如图所示的一个实验.将摆球拉至M点放开,摆球会达到同一水平高度上的N点。如图在E或F处钉上钉子,摆球将沿不同

伽利略曾设计如图所示的一个实验.将摆球拉至M点放开,摆球会达到同一水平高度上的N点。如图在E或F处钉上钉子,摆球将沿不同的用弧达到同一高度的对称点,反过来,如果

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