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我们国家使用最多的抗菌药物是()。A、喹诺酮药物B、磺胺类药.....
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牙髓活力判断,哪种方法最可信()A.冷诊B.热诊C.电诊D.备洞反.....
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It is not _____to quarrel with your boss...
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Zhang Ming is good ______ Chinese. He often helps ______ it...
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在无产阶级人数很少而战斗力很强、农民和其他小资产阶级占人.....
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The organization performed an important _____ in protecting the rights of children...
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