— It's a pleasure to travel with you.
一 It's so kind of you to say so.
A:happy thing
B:difficult thing
C:terrible thing
在化学反应2A+B=2C中,设有6克A和B完全反应生成14克的C,若B的相对分子质量是32,则c 的相对分子质量为( )
读非洲图:②处的气候类型是( )
6×____=____
5×____=____
That I want to tell you is that the cat gave birth to 3 babies just now.
计算:
8003(结果精确到1).