下关于非洲的叙述,正确的是( )
A:地势西北高,东南低
B:有世界上最大的热带雨林区
C:矿产资源丰富,但生物资源极为贫乏
D:“富饶的大陆”和“贫穷的大陆”
1h____100min 3min____30s 5dm____70cm
It's difficult to make your dream come true you can live bravely, excitingly and imaginatively.