1995年能源生产总量比l985年多(  )。

1995年能源生产总量比l985年多(  )。 A.45% B.55%    ⊙考试大o在线考试中心⊙ C.43488吨标准煤 D.43488万吨标准煤

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The author concludes that historical changes would ________

The author concludes that historical changes would ________A.be delayed without

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原生演替的速度比次生演替的速度(  )

原生演替的速度比次生演替的速度(  )A.快 B.慢 C.相等 D.依具体情况而定

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处置突发性公共事件的首要原则是(  )。

处置突发性公共事件的首要原则是(  )。

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New drivers are far more __________ to have accidents than e

New drivers are far more __________ to have accidents than experienced drivers.

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