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Although everything seems to have been taken into consideration, ________    accident can happen when the astronauts walk in   ________   space.

A./; the

B.a(chǎn)n; the

C.the; the

D.a(chǎn)n; /

 

【答案】

D

【解析】考查冠詞。第一空填不定冠詞表泛指,第二空space“太空”前不加冠詞,故選D項(xiàng)。

 

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