视力检查时，远视力不到1.0，近视力正常，应是下列哪种情况？（）
A、近视眼
B、远视眼
C、正视眼
D近视眼或复性近视散光
参考答案：D
—Could you tell me at the meeting?
—Sorry, I don't know. I didn't go to the meeting that day. [ ]
A. what does he say
B. what he says
C. what he said
D. what did he say
右图是a、b两种固体物质的溶解度曲线，下列说法中不正确的是
A．a的溶解度大于b的溶解度
B．在t℃时，a、b的饱和溶液中溶质的质量分数相同
C．当a中含有少量b时，可以用冷却热饱和溶液法提纯a
D．a、b都属于易溶物质
