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第1题

若目标函数为求mAx，一个基可行解比另一个基可行解更好的标志是是( ) A.使Z更大 B.使Z更小 C.绝对值更大 D.Z绝对值更小
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第2题

The rest of the family had nearly reached the river, but I was ________ behind as usual. A、 declining B、 delaying
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第3题

49. 27、________ that no one could see them even with very powerful microscopes. A、 So are the electrons small B、 So
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第4题

48. To be honest with yourself is to ________ yourself. A、 look B、 do C、 refuse D、 respect
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