Why was the PEP originally invented?
举一反三
- Why people invented the first computer?
- —[u] [/u] was the car invented? —It was invented in 1983. A: When B: Why C: How D: Who
- ---Football______by the British at the beginning of last century. ---That’s probably why football is one of________popular games in England. A: was invented, the most B: invented, more C: was invented, more D: invented, the most
- 中国大学MOOC: Why people invented the first computer?
- American people have invented a variety of new things, but why do they choose these five things as their cultural symbols