A. a secretary who does your business or social writing B. a machine that does writing for you C. a public school where writing is taught D. a person who earns a living by writing for others 参考答案:D 答案解析:文章中public scribe后面的动词不定式从形式上看,是在作定语,实际上解释public scribe的内容,所以 D正确。
第18题: [单项选择]初种麻疹减毒活疫苗的时间是 A. 生后4个月 B. 生后2个月 C. 生后8个月 D. 4岁时加强1次 E. 8岁时加强1次 参考答案:C 答案解析:[解题思路] 麻疹初种年龄是生后8个月,此时由于从母体获得麻疹抗体已消失,应及时接种。 [命题规律] 考察“计划免疫”。必须掌握。
第26题: [单项选择]Questions 29 to 32 are based on the passage you have just heard. A. Call on people to protect sharks. B. Point out the living environment of sharks. C. Explain why the sharks are dangerous. D. An introduction to sharks. 参考答案:D 答案解析:[听力原文]29-32 Scientists say sharks have lived in the world’s oceans for millions of years. Scienti