Population migration has a profound impact on the environment of the moving areas and the moving areas. Answer questions 1 to 3 based on relevant knowledge. Small topic 1: In recent years, our countr

Population migration has a profound impact on the environment of the moving areas and the moving areas. Answer questions 1 to 3 based on relevant knowledge. Small topic 1: In recent years, our country has sent overseas

Small question 1: A

Small question 2: C?

Small question 3: C

Small question 1: This question is tested Population migration. Question 1: The adverse impact of population migration on the place of emigration.

Small question 2: Question 2, the pressure of Spring Festival travel is mainly due to the large flow of migrant workers.

Small question 3: In question 3, Germany attracts people to immigrate mainly because of its developed economy; Saudi Arabia attracts a large number of foreign workers mainly because of its oil development, which is also an economic factor.