商品批发和商品零售的划分依据是(  )

商品批发和商品零售的划分依据是(  )

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13,33,26,64,(  )

13,33,26,64,(  )A.75 B.52 C.65 D.77

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If you had been here yesterday, you __________ (see) his fat

If you had been here yesterday, you __________ (see) his father.

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Our space and time laws don't __________ to objects in the a

Our space and time laws don't __________ to objects in the area of a black hole.

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室内荧光灯的连续照射对患有先天性心脏病的仓鼠的健康有益。一群暴露在荧光灯连续照射下的仓鼠平均寿命比另一群其他条件大体相同

室内荧光灯的连续照射对患有先天性心脏病的仓鼠的健康有益。一群暴露在荧光灯连续照射下的仓鼠平均寿命比另一群其他条件大体相同但生活在黑暗之中的仓鼠长25%。 上面描

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