The population of wild chimpanzees in Africa has dropped from 2 million to 150,000 in less than a hundred years.
举一反三
- In fact, it has just a history of （）. A: less than two hundred years B: more than a hundred years C: less than a century D: nearly a century
- Humans and chimpanzees diverge from a common ancestor about 10 million years ago.
- Humans and chimpanzees diverge from a common ancestor about two million years ago.
- The current population in America is less than 315 million, rendering it the world’s third largest population, following China and India.
- Humans and chimpanzees diverge from a common ancestor about six million years ago. A: 正确 B: 错误