(2014·煙臺(tái)市第二次診斷)Vitamin D helps our bodies make a special chemical,and this special chemical,________,affects our brains,making us feel happy.

A.in turn B.in particular

C.in advance D.in short

 

A

【解析】考查介詞短語。句意為:維生素D幫助我們的身體形成一種特殊的化學(xué)物質(zhì),并且這種化學(xué)物質(zhì)反過來影響我們的大腦,使我們感到高興。in turn相應(yīng)地,轉(zhuǎn)而;in particular特別地;in advance提前;in short簡而言之。

答案: A

 

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