Another important way to prolong the life of cut flowers is_

Another important way to prolong the life of cut flowers is____A.by keeping its

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Australia is one of the biggest winners from globalization.

Australia is one of the biggest winners from globalization.A.Right B.Wrong C.Not

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已知正方体的棱长为1,则这个正方体的外接球的直径为(  ).

已知正方体的棱长为1,则这个正方体的外接球的直径为(  ).

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18和30的最大公因数是(  ).

18和30的最大公因数是(  ).A.2 B.3 C.6 D.8

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下列有关生活常识的说法错误的是(  )

下列有关生活常识的说法错误的是(  )A.常吃苹果可预防口腔炎 B.小面积皮肤损伤或烫伤可用牙膏涂抹 C.鸡蛋竖放不易坏 D.茶叶受潮后放到太阳下晒,然后密封保

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