【題目】Lawrence Craven is the author of several published reports, one of _____ introduced the idea _____ aspirin could reduce the risk of heart attacks.

A. them; when B. which; that

C. what; that D. which; when

【答案】B

【解析】

試題分析：B考查從句。根據(jù)分析，第一個空為介詞+關(guān)系代詞的定語從句，先行詞為reports，所以用which引導(dǎo)定語從句且在從句中作主語；the idea是一個抽象名詞，一般后面跟that引導(dǎo)的同位語。句意：勞倫斯·克萊文是幾個出版過報(bào)告的作家之一，這些報(bào)告的其中之一介紹了一種理念——阿司匹林能減少心臟病發(fā)作的風(fēng)險。故選B

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