问题
选择题
若2xm－1y与x3yn是同类项，则m，n满足的条件是[ ]
A．m=4，n=1
B．m=4，n=0
C．m=1，n=3
D．m=2，n=1
答案
答案：A
搜题请搜索小程序“爱下问搜题”
若2xm－1y与x3yn是同类项，则m，n满足的条件是[ ]
A．m=4，n=1
B．m=4，n=0
C．m=1，n=3
D．m=2，n=1
答案：A
| 情景反应. | |
| 多年不见的老同学见面了, 你看他们多么开心! 他们究竟说了些什么? 请从下列选项中选择恰当的句子完成对话。 | |
| |
| Jim: Hey, Peter! Nice to see you . Peter: I'm sorry I don't know you . Who are you? Jim: I'm Jim! Your classmate 1 . Peter: Oh, you're Jim, aren't you? Jim: Yeah. Peter: 2 . Jim: Yes, but I'm 1.8 metres tall. Peter: 3 . Jim: Yeah, I still wear glasses. Peter: 4 . Jim: I'm in Shenzhen now. Peter: Let's go to the restaurant for dinner, and we can have a chat. Jim: 5 . | |
| 1. _________ 2. _________ 3. _________ 4. _________ 5. _________ |