单选题
The space animal theory would seem to indicate that ______.
A、
living creatures are extremely adaptable
B、
life in space is impossible for man
C、
the fittest creatures always survive
D、
life cannot exist in the depth of the sea
【正确答案】
A
【答案解析】
解析：做此题可以先排除错误选项，B、C、D项与文章大意无关。
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