— ___________?
— That sounds good!
A:When is your birthday
B:How many cards do you have
C:Would you like to go to the movies
D:How far is it from our school to your home
一年分为明显的旱、雨两季,风向随季节而变化的气候类型是( )
图示电能表的示数是____ kW•h.
物质
甲
乙
丙
丁
反应前质量(g)
20
m
8
6
反应后质量(g)
4
待测
28
2
关于此反应,下列描述正确的是( )