问题
选择题
With more traffic problems arising, more strict rules have been set, which makes it difficult for people to succeed __________the driving test
A．to pass
B．passing
C．to have passed
D．to be passed
答案
答案：B
题目分析：句意：随着越来越多的交通问题产生，更多严格的规定已经设立，这使人们很难通过驾驶测试。Succeed （in） doing“成功的做”，选B。
CH3OH(g)
不变的情况下，对处于E点的体系体积压缩到原来的1/2，下列有关该体系的说法正确的是 。