CAAC was formed in 1980.
举一反三
- MTV was started in 1980.
- The building ______________ a national monument in 1980.
- The _________situation is very different from that in 1980.
- A marketing group is studying population trends. It predicts that the population P of a certain city will increase at the rate of dP/dt people per year, where dP/dt=15000/sqrt____ and t is the number of years past 1980. What is the expected increase in population from 1980 to 2001?
- 观看关于CAAC的视频，判断下列句子是否正确。 The full name of CAAC is Civil Aviation Administration of China.