He covered his head __________ (conscious) with his hands wh

He covered his head __________ (conscious) with his hands when it started to rai

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Many people, including college students of all ages, spend l

Many people, including college students of all ages, spend little time in pursui

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目标,对象n.t _ _ _ _ _

目标,对象n.t _ _ _ _ _

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假设地球是一个正球形,它的赤道长4万千米。现在用一根比赤道长10米的绳子围绕赤道一周,假设在各处绳子离地面的距离都是相同

假设地球是一个正球形,它的赤道长4万千米。现在用一根比赤道长10米的绳子围绕赤道一周,假设在各处绳子离地面的距离都是相同的,那么绳子距离地面大约有(  )。 A

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准备,预备v.p _ _ _ _ _ _

准备,预备v.p _ _ _ _ _ _

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