题干
补全下面的对话。
A．Size 8，please． B．These shoes are nice． C．I will take them． D．How much are they? E．Here you are． |
A：Can I help you?
B：Yes．____Can I try them on?
A：Of course．
B：____
A：OK．____
B：____
A：$50．
B：Here is the money．____
答案(点此获取答案解析）
B,A,E,D,C
的物质互为同分异构体的是（ ）
