2. 考研
  3. A mare basin is______. Sialic material refers to______.

A mare basin is______. Sialic material refers to______.

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问题 A mare basin is______.
Sialic material refers to______.
选项 A、the broken,rock resulting from the impact of a meteorite against the earth
B、material that exists on planets other than the earth
C、a composite of rock typical of continental areas of the earth
D、material that is man-made to simulate materials that existed far back in geological history
答案C
解析 细节理解。在文章的第三段第三句："举例说，Donn et al．提出大陆区域那般大的、硅铝结构的天体撞击形成最初的大陆块的设想"。说明地球大陆地区特有的岩石构成。而其他三项文章并没有提及。
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考研英语一

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