例3　The underlined part “abstain from” in Paragraph 3 probably means　　    . A.avoid　　B.practice C.continue　　D.try (原文) For the study, 12 young men were shown videos, which meant to bring about a variety of emotions, while researchers gathered sweat samples from them. All of the men were healthy and none of them were drug users or smokers, and all were asked to abstain from drinking or eating smelly foods during the study period. 分析　此题需要考生利用最后一句前后两个分句的逻辑关系解题,前半句提到所有人都是健康的并且不吸毒、不吸烟,那么and后面就应该在意思上与前半句一致,因此可以判断出后半句中的喝酒或吃有臭味的东西也是不可以的,故选择A项。