题目

大肠杆菌的生殖方式是 Ａ．分裂生殖    Ｂ．孢子生殖    Ｃ．芽孢生殖    Ｄ．种子生殖 答案：A1. 感谢你们今天来参加第三中学的毕业典礼。Thank you today to attend the graduation ceremony at No. 3 Junior High School.