A:空气中二氧化碳约占其体积分数为0.94%
B:石油炼制可得到汽油、煤焦油、航空煤油等
C:海水中含量最多的元素是钠元素
D:人们正在利用和开发的其他能源有氢能、太阳能、风能等
We believe the public services in our city are good, and we are working hard to make it even .
sheep
下列现象中,能用分子热运动知识来解释的是( )
I saw a ________ boy playing football in the garden.