中国大学MOOC: Gunpowder was invented in China, not by a alchemists seeking the elixir of immortality, but by people seeking better weapons or even explosives.
举一反三
- 中国大学MOOC: The gunpowder was firstly invented by alchemists while attempting to make an elixir of immorality.
- The gunpowder was firstly invented by alchemists while attempting to make an elixir of immorality. A: 正确 B: 错误
- Alchemists are people who ( ) A: create weapons for the country. B: produce food for people. C: create elixir for kings or emperors. D: teach children at home.
- Seeking a better life the Separatists
- 中国大学MOOC: Alchemists are people who ( )