A. identities B. their identities C. of identities D. whose identities 参考答案:D 答案解析:这里明显是一句定语从句。因为连接词though已经有了谓语动词agree,所以据此判断,本句应该选择连接词whose引导定语从句identities are unclear。
第22题: [单项选择]What did the man do first A. He did some shopping. B. He played football. C. He posted some letters. D. He went to the office. 参考答案:C 答案解析:[听力原文] W: Where have you been since I saw you at the post office M: I went shopping and then
第23题: [单项选择]不是影响碘缺乏疾病流行的因素是() A. 环境污染 B. 地理条件西部高山水土流失 C. 环境中致甲状腺肿的物质 D. 经济条件的影响 E. 营养不良 参考答案:A