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According to the passage, the chief purpose of explorers in going to unknown places in the past was ______. The passage tells u
According to the passage, the chief purpose of explorers in going to unknown places in the past was ______. The passage tells u
admin
2009-03-16
70
问题
According to the passage, the chief purpose of explorers in going to unknown places in the past was ______.
The passage tells us that proof of life on Mars would ______.
选项
A、make clear the complex chemistry in the development of life
B、confirm the suggestion that bacterial fossils travelled to Earth on a meteorite
C、reveal the kind of conditions under which life originates
D、provide an explanation why life is common in the universe
答案
D
解析
细节题。最后一句指出;如能证明生命独立存在于火星与地球上,这一发现将给科学中最深奥秘之一的“宇宙中生命普遍存在”问题提供第一个具体线索,即可解释为何生命在宇宙中普遍存在。
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本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
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公共英语四级笔试
公共英语(PETS)
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