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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A.It is reported in a study that vitamin E may do more harm than good to people to live longer and get healthier.

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