下列说法中,与化学变化中遵循的质量守恒定律不相符合的是( )
A:水结冰后,质量保持不变
B:铜粉在空气中加热后,质量增大
C:蜡烛在空气中燃烧后,质量减小
D:1.2g碳与3.2g氧气完全反应,生成4.4g二氧化碳
She said that she would do _______ she could __________ her daughter laugh.
选出句子中你所听到的单词( )
选择相应的图片( )