如图漫画反映了我国某项国情基本特征,你认为正确的是( )
A:我国是世界人口最多的国家
B:我国自然资源总量大,但人口众多,人均占有量少
C:要控制人口数量,提高人口素质
D:合理利用自然资源,实施可持续发展战略
ride a bike
fly kites
sleep under a tree
read books
skip
sing a song
play football
Today is Sunday. The weather is fine. The children are playing in the park. Look. Sam and Leo are flying kites.
已知函数f(x)的图象是连续不断的,现给出x,f(x)的部分对应值如下表:
x
﹣2
﹣1
1
2
3
f(x)
﹣3
4
则函数f(x)一定有零点的区间是( )
则存储该音频文件需要的磁盘空间约为( )