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Deserts ______. Land is becoming desert little by little because ______.
Deserts ______. Land is becoming desert little by little because ______.
admin
2009-10-15
49
问题
Deserts ______.
Land is becoming desert little by little because ______.
选项
A、plants can’t grow there
B、there is not enough rain
C、people haven’t clone what scientists wish them to do
D、scientists know little about the deserts
答案
C
解析
土地慢慢沙化的原因不是缺少雨水,也不是植物不能生长,更不是科学家知之甚少,而是人们自己的行为造成的,第一段最后一句作了解答。
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