If according to the developed country the environmental product employed people's proportion computation, our country needed the environmental protection jobholders 10,000,000 people in the early 90s. If the environmental protection technical personnel according to the environmental protection jobholders' 5% computations, will n
If accroding to the employed people's proportion of the environment-protection industry of the developed country in the beginning of 90s to calculate, our country needed 10 million
