Desert . Small green plants are very important to dry places because .

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问题 Desert ______.
Small green plants are very important to dry places because ______.

选项 A、they don’t let the sun make the earth even drier
B、they don’t let the wind blow the earth away
C、all of the above

答案C

解析从第三段第五句、第六句可知绿色植物能不让太阳使地面更干燥，也不让风刮走沙土。

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公共英语一级笔试

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