题目：30． Which is the best title for the passage
A． The Desert Problem
B． People Make Deserts
C． Green Plants and Grass
D． The Desert，the Tree and the Water
喵查答案：A
30.A【解析】作者在文章中叙说和阐明的观点与问题是地球土壤沙漠化的问题。故选A。
题目：30． Which is the best title for the passage
A． The Desert Problem
B． People Make Deserts
C． Green Plants and Grass
D． The Desert，the Tree and the Water
喵查答案：A
30.A【解析】作者在文章中叙说和阐明的观点与问题是地球土壤沙漠化的问题。故选A。
