20℃时硝酸钾的溶解度为31.6g。在该温度下将40g硝酸钾放入100g水中,充分搅拌,则所得溶液的质量为( )
A:40.0g
B:31.6g
C:131.6g
D:140.0 g
- What's your favourite ________?( )
- Red.
日本工业集中分布在( )
The boy is like his father.