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It is President______whose administration was brought to an ignominious close with the pol..
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患者,男,36岁,口腔内双颊处白斑。检查:口内双侧颊黏膜白.....
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The first English colony in America was founded in Virginia. Between 1607 and 1733, the Br..
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The original inhabitants on the North American Con.....
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抗日战争时期的教育方针和政策的主要内容是什么?..
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慢性粒细胞白血病发生急性左上腹剧痛,首选考虑的诊断是A、急.....
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