第2题: [单项选择]He wasn't asked to take on the chairmanship of the society, ______ insufficiently popular with all members. A. having considered B. was considered C. was being considered D. being considered 参考答案:D 答案解析:过去分词的进行式,用作原因状语,因为主语he与consider是被动关系。
第3题: [单项选择]国际单位制中热量的单位采用()。 A. 卡(Cal) B. 焦(J) C. 英热单位(Btu) D. 千瓦•时(kw•h) 参考答案:B