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【单选题】
不饱和溶液中溶质的化学势 m 与纯溶质的化学势 m * 的关系式为:
A.
μ=μ*
B.
μ>μ*
C.
μ
D.
不能确定
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参考答案:
举一反三
【简答题】Which of your two hands do you use most? Very few of us can use __1__  of our hands equally well. Most of us are right-handed. Only about five people ___2___ a hundred are left-handed. New-born babies...
【简答题】I dentify the slogans of some famous companies .
【简答题】dentify the adjective suffix in each of the following words that means “pertaining to” or “resembling”. cutaneous____
【单选题】I I dentify the topics from A , B , C .
A.
Satisfaction of human needs
B.
Relations between animals and humans
C.
animal rights
【简答题】Read the following paragraph, and i dentify all the references to time .
【单选题】在SELECT命令中用于排序的短语是( ).
A.
SORT
B.
SORT BY
C.
ORDER
D.
ORDER BY
【单选题】Don’t ( )! Grasp the good opportunity!
A.
think
B.
hesitate
C.
waste
D.
shiver
【简答题】关于红外光谱的吸收峰,下面叙述正确的是(    ) A.诱导效应使吸收峰向高波数方向移动 B.物质分子发生互变异构时,吸收峰位置不发生变化 C.共轭效应使吸收峰向低波数方向移动 D.氢键的形成使吸收峰向高波数方向移动
【简答题】红外吸收光谱中,吸电子的诱导效应常使基团的吸收峰向( )(填高,低)波数方向移动。
【判断题】诱导效应使红外吸收峰向低波数方向移动
A.
正确
B.
错误
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