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。
查看答案
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
Hewhen he heard his name.
A. stopped short
B. stop short
C. popped up
D. pull to a stop