A:1千克的铁比1千克的木头多一些,而1千克的水蒸气比1千克水多一些
B:装满液体的容器,温度升高时液体从容器中流出,说明质量增加了
C:物体从固态变成液态质量就要改变
D:质量是物体本身的一个属性、不随物体的形状、温度、物态变化而改变
Problems in 2050
What happened when Lily came back to her room?
What was Mike doing at 11: 30 a. m. the day before yesterday?
What was wrong with Mike's fridge that day?
Why could Benny's father's car not work?
你的介绍可以这样开始: Lily was staying at the Hotel Whale last week…