问题
选择题
某高聚物的结构简式如图：其单体的名称为（ ）
A．2，4-二甲基-2-已烯
B．2，4-二甲基1，3-已二烯
C．2-甲基1，3-丁二烯和丙烯
D．2-甲基1，3-戊二烯和乙烯
答案
答案：D
搜题请搜索小程序“爱下问搜题”
某高聚物的结构简式如图：其单体的名称为（ ）
A．2，4-二甲基-2-已烯
B．2，4-二甲基1，3-已二烯
C．2-甲基1，3-丁二烯和丙烯
D．2-甲基1，3-戊二烯和乙烯
答案：D
B: It was great. I went to Qingdao. A: 小题2:_________ B: It’s very beautiful. I really like the beach and the food. A: 小题3:____________ B: Any kind of food is okay. A: Is it expensive? B: Maybe a little. 小题4:____________ But it has the friendliest service. A: You are right. The people there are really friendly. I hope one day I can go there. 小题5:_____________ B: OK. You’d better go there in summer. It’s the most beautiful at that time. A: Thanks a lot. B: You’re welcome. |