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计算:(-9.6)+1.5+(-0.4)+(-0.3)+8.5
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甲队有工人96人乙队有工人72人如果要求乙队的人数是甲队人数的应从乙队调多少人去甲队如果设应从乙队调
96+x=
(72一x)
(96+x)=72一x
(96-x)=72-x
×96+x=72一x
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有关后牙3/4冠的牙体预备下列叙述正确的是
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6502电气集中组合架六列侧面端子的用途原则上规定15条定型网络线用
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冰醋酸是各种无机强酸的区分溶剂各种无机酸在其中的酸性强弱顺序为
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H2S04>HCl>HN03>HBr>HCl04
HCl04>H2S04>HCl>HBr>HN03
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“01”和“04”
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