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醉酒驾驶是指驾驶人血液中酒精含量大于或等于100mg/100ml。.....
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在寒冷季节救火,必要时,可在屋顶上铺麻袋、撒锯沫,以防滑.....
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长时间看电脑会改变泪液成分,影响用眼健康。这个说法对吗?.....
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About a quarter of the workers are jobless because of the economic crisis.A.thirdB.fourth..
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检验司机是否酒后驾车的物质是()。A、含有Fe2O3的硅胶B、含.....
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The document was compiled by the Department of Health.A.printedB.attachedC.writtenD.sent..
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