53. According to Professor Barnes, theobromine ______.
(A) cannot be as effective as codeine
(B) can be harmful to people’s health
(C) cannot be separated from chocolate
(D) can be a more effective cure for coughs

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詳解 (共 1 筆)

#1204311
从第二段的Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.可看出theobromine比codeine更有效，判断A项错误。既然它用来止咳，改善人们的生活质量，所以B项错误。在第一段提到了heobromine是从chocolate里提炼出来的，所以C项错误。故正确答案是D项。
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