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【单选题】
对油脂性基质说法正确的是
A.
凡士林经漂白后可用于眼膏剂基质
B.
液体石蜡具有表面活性及一定的吸水性能
C.
凡士林基质常用于制备乳膏剂
D.
羊毛脂主要成分是胆固醇的棕榈酸酯及游离的胆固醇类
E.
油脂性基质是指烃类一类物质
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不可在手术人员背后传递器械
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【单选题】Traditional Chinese sports are similar to the Western sports _______ both are meant to improve people’s health.
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因果系统
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【单选题】线性时不变系统是因果系统的充分必要条件是:
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B.
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【单选题】The blurring of working womens roles refers to the fact that______.
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they are both bread winners and housewives
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their home is also a place for kicking back
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there is often much housework left behind
D.
it is difficult for them to leave their office
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【简答题】The Elysee Palace in France enjoys equal popularity in the world with the Buckingham Palace in the United Kingdom, the Kremlin in Russia as well as the White House in the U. S. It is the residence of ...
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B.
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C.
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D.
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