题目

244. Last Sunday, My friend and I drove to the Summer Palace in Beijing. We found there were so many cars here and there and we couldn’t find a place to _______ the car in. A. pause                     B. stop                       C. place                      D. Park 答案：D一定温度下，饱和食盐水露置在空气中一段时间后，有少量晶体析出，是因为A．氯化钠溶解度变小 B．溶质的质量分数变小C．溶剂质量减小 D．溶液变成不饱和溶液