Why did many countries of the South send students to the developed countries A: Because these countries need trained personnel to develop their countries. B: Because the developed countries need more qualified professionals. C: Because these students can stay on in the developed countries after the training. D: Because these countries want to establish friendly relationship with the developed countries.

We call the phenomenon of scientists moving from a developing country to a developed country as: A: Brain Drain B: Brain Gain C: Brain Circulation D: Brain Damage

The agreement the three presidents assigned on Tuesday implies that ______. A: all these three countries enjoy the equal tariff treatment B: developing countries gain great help from those developed ones C: it will bring only positive results for the three countries D: African countries are trying to develop their trade and economy

China is a _____ country ______ to the third world. A: developed;belongs B: developing;belonging C: developing;belongs D: developed;belonged

developed country A: 发达国家 B: 发展中国家