第25题: [单项选择]The last half of the nineteenth century ______ the steady improvement in the means of travel. A. has witnessed B. was witnessed C. witnessed D. is witnessed 参考答案:C 答案解析:[解析] 根据主语可判断出时间为过去时。
第26题: [多项选择]半夏曲的功能有() A. 消肿散结 B. 降逆止呕 C. 燥湿化痰 D. 清热化痰 E. 健脾温胃 参考答案:C, E