SAT官方每日一题之阅读---完成句子：
Critical Reading > Sentence Completions
Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.
Bromelain, an enzyme found in pineapples, is not ------- in preventing bone and joint diseases, which can make bones
susceptible to injury, but it can help injured bones -------.
Answer Choices
(A) corrective . . heal
(B) effective . . recover
(C) detrimental . . multiply
(D) supportive . . degenerate
(E) vital . . persist
The correct answer is B
Explanation
It makes sense to say that although bromelain is not “effective” against, or cannot prevent, bone injury, it is effective in helping injured bones “recover.”
