第16题: [单项选择]Generally speaking,the air pollution in cities is more serious thanin the country.
A. ones B. one C. that D. those 参考答案:C 答案解析:对比结构中,对比对象中出现的重复名词用that或those代替,由此排除A项和B项。the air pollution是不可数名词,排除D项。故选C。
第33题: [单项选择]天疱疮临床类型中病情最轻的是() A. 寻常型天疱疮 B. 增殖型天疱疮 C. 落叶型天疱疮 D. 红斑型天疱疮 E. 疱疹样型天疱疮 参考答案:D 答案解析:红斑型天疱疮是临床类型中病情最轻的一型;寻常型天疱疮是临床类型中病情最重的一型。
第34题: [单项选择]Passage Three Questions 32 to 35 are based on the passage you have just heard. A. By good sense of water waves made by quarries. B. By good sense of smell and electrical and magnetic power. C. By good sense of light. D. By good sense of blood. 参考答案:B 答案解析:[听力原文] How can sharks find their quarries