◎ 题干
Although everything seems to have been taken into consideration, ______ accident can happen when
the astronauts walk in ______ space.
[     ]
A. /; the
B. an; the
C. the; the
D. an; /
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Although everything seems to have been taken into consideration, ______ accident can happen when the astronauts walk in ______ space. [ ]A. /; the B. an; th…”主要考查了你对  【不定冠词】【零冠词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。