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问题:

[单选,材料题] The word "sustainable" in the last paragraph is closest in meaning to__________.

A . affordable
B . available
C . persistent
D . continual

参考答案:

  参考解析

【答案】D
根据文章最后一段倒数一句话“The challenge now is how we turn these findings into action and identify other sustainable lifeswle changes that will help US prevent breast cancer.”可知,面对挑战我们应 该“坚持”,sustainable是“可持续的意思”。D选项continual“可继续的”符合文意。

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