第2题: [单项选择]She took good care of public property and ______ a good example to all of us. A. copy B. set C. take D. make 参考答案:B 答案解析:[分析] set an example to“为……树立榜样”；copy(follow)one's example“按照……的示范做”；take example by“以……为榜样(借鉴)”；make
第4题: [填空题]The practice at Imperial College, London proves that some scientists’ fears of focusing too much communication are ______. 参考答案:ill grounded 答案解析:[解析] 从“However，there is evidence to suggest these fears are ill founded．For example，the departments
第21题: [单项选择]CO经呼吸道进入血液中，最先受累的脏器是（） A. 心脏 B. 肺脏 C. 肝脏 D. 肾脏 E. 脑组织 参考答案:E 答案解析:一氧化碳中毒时，脑、心对缺氧最敏感，最先受损害。脑血管先发生痉挛，后麻痹扩张，缺氧引起脑细胞内水肿，血管渗透性增加又引起细胞间质水肿，最终致脑血液循环障碍，造成血栓形成。
