学习了密度知识后,小明对一个鸡蛋的体积进行了估算(鸡蛋密度与水相近),下列估算值最接近实际的是( )
A:50 cm3
B:10 cm3
C:150 cm3
D:100 cm3
____
-You look so worried, what’s wrong?
-More and more people like me begin to worry about the ______ pollution after the haze (雾霾) appeared in Beijing and some other cities in China.