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左上牙槽后神经阻滞麻醉可对哪一颗牙拔除起到麻醉作用：（)A......
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结核性脑膜炎最简便的确诊方法是（)A、头颅CTB、脑脊液做结核.....
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There are more than five hundred people on the playground.（英译中)..
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The allied warplanes bombed the country by the hundred.（英译中)..
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The archaeologists have found several human skeletons.（英译中)..
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过敏性紫癜A.血小板减少，形态正常B.血小板减少，体积变小C......
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