英语

　　1.Differential diagnosis methods help to rule ( ) unrelated diseases based on the information provided.

　　A. for

　　B. in

　　C. with

　　D. out

　　【答案】D。“不同的诊断方法可以帮助…无关疾病”。A项rule for短语不存在;B项rule in：划入;C项rule with：用…方式管理;D项rule out: 排除、取消。根据句意可知补充“排除无关疾病”更合适，所以答案选D。

　　2.( ) the brain’s workings is a tremendous challenge and, judging by the advance of current processor power and complexity, will take at least several decades more to reach even the most elementary levels.

　　A. Imitating

　　B. Observing

　　C. Increasing

　　D. Speculating

　　【答案】A。“…大脑的工作是一个巨大的挑战，从当前处理器能力的复杂性来看，至少需要几十年的时间才能达到最基本的水平”。选项A：模仿;选项B：观察;选项C：提升;选项D：投机、猜测。根据句意可知补充“模仿大脑工作”更合适，所以答案选A。

　　3Hawass said the collection of workers’ tombs, some of ( ) were found in the 1990s, were among the most significant findings in the 20th and 21st centuries.

　　A. them

　　B. which

　　C. whom

　　D. who

　　【答案】A。“Hawass说这些劳工的坟墓，有一些被发现在20世纪90年代，都是20世纪和21世纪的重要发现。”观察可知空缺处是非限制性定语从句，先行词tombs是物，选项ACD排除。所以答案选B。