题目

My sister, an inexperienced rider, was found sitting on the bicycle ______to balance it. A . having tried B . trying C . to try D . tried 答案：B18、阅读下图数据，按要求在横线处填写适当的文字。(6分) (1)从上图中可以看出我国城乡劳动力人口受教育情况有如下特点(用对比说明，每条不超过30字)(4分) (2)请针对上图所反映出来的问题，提一条具体的建设性意见。(不超过20字)(2分)