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求问一篇阅读机经的句子作用题 [复制链接]

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发表于 2019-4-19 19:48:14 |只看该作者 |倒序浏览
The discovery of subsurface life on Earth, surviving independently from surface life, refuted the belief that biological processes require not only liquid water but sunlight as well, thus greatly enhancing the possibility of life beyond Earth. Take Jupiter’s moon Europa. Space probes show a body covered with a thick layer of ice. As Europa orbits its planet, however, it flexes due to the gravitational tug-of-war between it, its sister moons, and Jupiter. Through friction, this flexing produces heat in the moon’s interior capable of melting ice. Indeed, observations suggest liquid water exists beneath Europa’s icy crust. Photosynthetic life is impossible there because sunlight is completely absent, but life such as the microbes that flourish deep within earth may still be possible.

The highlighted sentence “take Jupiter’s moon Europa” serves to introduce
A. an instance that allows a hypothesis to be tested
B. speculation grounded in empirical discovery
C. a deduction from a newly advanced hypothesis  
D. a large-scale effect of an apparently insignificant contingency
E. the derivation of a contradiction to refute a claim

为什么不选C呢
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RE: 求问一篇阅读机经的句子作用题 [修改]
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求问一篇阅读机经的句子作用题
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