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误入堂歇后语及寓意 水浒传歇后语 误入堂歇后语及寓意
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举一反三
【单选题】You may make good grades by studying only before examinations, but you will succeed eventually only by studying hard every day.
A.
in due course
B.
in the long run
C.
in the main
D.
in the first place
【单选题】导游员在处理旅游故障时,遇到自己难以把握和判断的情况时,要多请示,多汇报,体现的原则是
A.
损失最小化原则
B.
合理而可能原则
C.
确保旅游日程原则
D.
按规章办事原则
【简答题】按照上图,编写程序,完成功能
【单选题】In Para. 2, it is suggested that ______.
A.
it is only by studying philosophy that a man can develop religious beliefs
B.
by examining a living cell under a microscope biologists can understanding the process of evolution
C.
there is a disparity of thinking between scientists and people from other walks of life regarding science and religion
D.
while some physicists conclude from the laws of nature that there is a God, others draw no such conclusion
【单选题】已知苯一乙醇双液体系中,苯的沸点是353.3K, 乙醇的沸点是351.6K, 两者的共沸组成为:含乙醇47.5%(摩尔分数),沸点为341.2K。 今有含乙醇77.5%的苯溶液,在达到气、液平衡后,气相中含乙醇为 y 2 ,液相中含乙醇为 x 2 。下列正确的是()
A.
y 2 > x 2
B.
y 2 = x 2
C.
y 2 < x 2
D.
不确定
【判断题】已知苯一乙醇双液体系中,苯的沸点是353.3K, 乙醇的沸点是351.6K, 两者的共沸组成为:含乙醇47.5%(摩尔分数),沸点为341.2K。 今有含乙醇77.5%的苯溶液,在达到气、液平衡后,气相中含乙醇为 y 2 ,液相中含乙醇为 x 2 。则 y 2 < x 2
A.
正确
B.
错误
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