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题库解析   >   平行 题型   >   SC752-765题
本题由hyman1提供
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SC752-765题

【OG20-P805-863题】

Positing an enormous volcanic explosion at the end of the Permian period would explain the presence of a buried crater, account for the presence of the element iridium (originating deep within the earth), and the presence of quartz having been shattered by high impact shock waves.


    <p>(A) account for the presence of the element iridium (originating deep within the earth), and the presence of quartz having been</p><p>(B) of the element iridium (originating deep within the earth), and of quartz</p><p>(C) the element iridium (originating deep within the earth), and explain the presence of quartz having been</p><p>(D) the presence of the element iridium (originating deep within the earth), and explain the presence of quartz</p><p>(E) explain the element iridium (originating deep within the earth), and the presence of quartz</p><p><br/></p>
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答案:
B

根据平行

和简洁性,可知B正确。

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