题目

读下图，回答关于图中山脉东西两侧水系特征叙述正确的是A．流域面积东部小、西部大B．河床坡度东部缓、西部陡C．流量季节变化东部小、西部大D．东侧为内流河，西侧为外流河 答案：BI was a little surprised. Why she told me ________ . [　　] A．all the story B．the whole story C．the all story D．the through story