单选题:In writing the passage,the author intends to__________ .

题目内容:
In writing the passage,the author intends to__________ . A.give an accurate descdption of the possible disaster in the future
B.prove that humans will sooner or later be destroyed
C.tell the historical development of the Earth
D.warn of a possible disaster in the future

参考答案:
答案解析:

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