According to the passage, what has this too fast development in Chinese aviation brought about ?
Many new airports have been built across the country, and some serious growing problems have arisen as well.
Many new airports have been built across the country ,and it is more convenient for Chinese people to trave abroad .
Many new airports have been built across the country , and foreign people know more about China .
Many new airports have been built across the country , and more and more foreign aviation buffs come to China .