由于溶液的溶质和溶剂的量是一定的，所以温度的变化将不会影响溶液的浓度。
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在一个混合体系中，各组分的摩尔分数都小于1.0，而且所有组分的摩尔分数的总和为1.0。
A. 对
B. 错
We shouldignorance.
A. fight for
B. fight against
C. fight with
D. fight through
The driver clapped on his brakes when he saw the child, but he failed to stop.
A. at a time
B. all the time
C. on time
D. in time
For years, Chinese billionaires began tomost frequently in Forbes magazine.
A. fight against
B. pull to a stop
C. pop up
D. stop short
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