第22题: [单项选择]As early as 1637, Ohio made a decision that free tax supported schools must be established in every town______40 households or more. A. having B. to have C. to have had D. having had 参考答案:A 答案解析:本题空格处是说每个市镇有40户住户或更多。根据句子结构,空格后的部分是修饰“every town”,作定语,应选择分词“having”。因此A项为正确答案。
第23题: [单项选择]清暑益气汤的功用是() A. 祛暑解表,化湿和中 B. 清暑益气,养阴生津 C. 清暑解热,化气利湿 D. 清暑化湿,理气和中 E. 祛暑化湿,健脾益气 参考答案:B