A. medicine B. driving C. exercise D. marathon 参考答案:C 答案解析:[解析] 由第二段第三句中的“In his book Aerobics, Dr. Cooper communicated his message of the benefits of exercise
第11题: [单项选择]碳钢管件多采用()。 A. 煨制件 B. 压制件 C. 冲压件 D. 焊接件 参考答案:C
第14题: [单项选择]It's urgent that a meeting ______ before the final decision is made. A. will be arranged B. must be arranged C. be arranged D. would be arranged 参考答案:C 答案解析:It is(was)+形容词/过去分词+that...结构中形容词后的主语从句用虚拟语气表示愿望、建议、请求、命令、可能、适当、迫切、重要等;should可省略。常用的形容词由natural,appr