题干
补全对话
A: Hello
B:____
A:My name____ Cindy. What's your name?
B:I____ Frank White. Frank is my____name.
A:And your____name is White.
B:That's right.____ to meet you, Cindy!
A:Nice to meet you,____!
B:What's your____number?
A:____ 873-2875.
B:____ !And my number is 872-2938.
答案(点此获取答案解析）
Hello,is,am,first,last/family,Nice,too,telephone/phone,It's,Thanks
2Z(g)+2W(g)在2L密闭容器中进行，5min后Y减少了0.5mol，则此反应的平均速率v为（ ）
