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Some well-known scientists believe that there is not enough oxygen on Mars to __
Some well-known scientists believe that there is not enough oxygen on Mars to __
游客
2023-11-05
43
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问题
Some well-known scientists believe that there is not enough oxygen on Mars to ______ human life.
选项
A、remain
B、sustain
C、retain
D、last
答案
B
解析
动词词义辨析题。remain表示“保持,逗留,剩余,残存”;sustain表示“支撑,维持”;retain表示“保持,保留”;last表示“持续”。氧气是维持人类生存用的,B正确。
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