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【单选题】
下列关于二元物系蒸馏相平衡公式的讨论哪个错误？A.
理想物系的相平衡公式可以由相对挥发度的概念推到。挥发度的表现是蒸气压，温度低，蒸气压高，必然是易挥发的，所以用纯物质的饱和蒸气压可以表示挥发度的大小。
B.
由拉乌尔定律，理想二元物系的A的蒸气压与液相组成有关，其除以组成x即为其饱和蒸气压
C.
所以，根据相对挥发度的定义，应该得到
D.
相平衡方程对所有的物系都成立，因为它们都有相对挥发度，都可以得到用相对挥发度表征的方程。
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反馈参考答案：
举一反三
【多选题】社会主义核心价值体系是由( )等内容构成。
A.
马克思主义指导思想
B.
中国特色社会主义共同理想
C.
以爱国主义为核心的民族精神和以改革创新为核心的时代精神
D.
社会主义荣辱观
【判断题】H ow physically close or distant two people stand when they talk tells a great deal about their relationship .
A.
正确
B.
错误
【单选题】We can conclude from the passage that the author ______.
A.
was really physically sick
B.
was physically sick, but not serious
C.
was not really physically sick
D.
needed her mother's comfort
【简答题】A．monetarily B．economically C．mentally D．physically
【单选题】Physically, the two brothers were almost _______, but they were worlds apart in their approach to life.
A.
identical
B.
businesslike
C.
extent
D.
composed
【简答题】A．largely B．inteltly C．mentally D．physically
【单选题】He was healthy ( ) and ( ) .
A.
physical, mental
B.
physically, mentally
C.
body, mind
D.
bodily, mindedly
【单选题】— Is it better to be physically attractive or intelligent? — .
A.
Yes, it is very attractive.
B.
No, it is not attractive.
C.
For me, be intelligent is better, but that depends on.
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