第28题: [单项选择]Airplanes have made______. A. easy and comfortable for us to travel B. us to travel easily and comfortably C. it easy and comfortable for us to travel D. themselves easy and comfortable for us to travel 参考答案:C 答案解析:[解题指要] 该题测试形式宾语it的用法。形式宾语it代替后面的动词不定式for us to travel。it后接用作宾语补足语的形容词,为常考结构。
第29题: [多项选择]紫外分光光度法可测定的药物有 A. 氯氮卓 B. 奋乃静片 C. 盐酸氯丙嗪注射液 D. 地西泮片 E. 地西泮注射液 参考答案:A,B,C,D