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[Sentence Correction]
试题详情
题目：
Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.
选项:
A、to be huge reservoirs of energy, possibly causing sea floor instability, and
B、to be huge reservoirs of energy, possibly causing sea floor instability, and even as
C、as huge reservoirs of energy, possibly causing sea floor instability, and
D、as huge reservoirs of energy, and the possible cause of sea floor instability,
E、as huge reservoirs of energy, as possible causes of sea floor instability, and even as
答案:
A
提问：
为什么选择A，E不是很平行
解答：
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