温度越高，氯气在水中的溶解度就（）。
A.愈大
B.愈小
C.愈变化
参考答案：A
什么是顾客满意水平？顾客满意水平的高低如何确定？
The doctor advised Elsa strongly that she should take a good rest ,
but _______ didn't help. [ ]
A. she
B. it
C. which
D. he
