第27题: [单项选择]HPLC测定复方炔诺酮片的含量 A. 三十二烷 B. 萘 C. 对硝基甲苯 D. 邻苯二醛 E. 正十四烷 参考答案:C
第28题: [填空题]How many famous explorers are mentioned in this passage Who are they 参考答案:Three: Marco Polo, Christopher Columbus and Richard Byrd. 答案解析: [听力原文]Qustions<6>-<10> Through history there
have been many great explorers. Have you, f