Some well-known scientists believe that there is not enough oxygen on Mars to __

游客2023-11-09 41

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。

转载请注明原文地址:https://tihaiku.com/zcyy/3172677.html

相关试题推荐

随机试题

最新回复(0)

Whatarethethreatstobiodiversityandecosystem?[originaltext]Scientists