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【单选题】
二元溶液是由两种化学成分及物理性质不同的纯物质组成的,在平衡状态下其液相具有不同的组分。在恒定的压力下,低沸点组分在气相中的成分总是 在液相中的成分。A.高于;B.低于;C.等于; D.不确定
A.
高于
B.
低于
C.
等于
D.
不确定
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位于眶上壁内侧部的泪腺窝内
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