Our government has tried many ways to the smog(雾霾)problem. Maybe we'll have a clear sky in the near future.
A:put away
B:work out
C:come up
一根豆角共有10粒种子,发育成它所需要的子房数、胚珠数、精子数和卵细胞数分别是( )
“中国人民站起来了”。下列事件中最能反映这句话内涵的是( )
下列各种现象中,不是通过动物“语言”发挥作用的是 ( )