One of the difficulties in carrying out worldwide birth control is that ______.
选项:
A:official attitudes to population and birth control vary from country to country
B:different countries have different customs and practices on birth control
C:decreasing birth rate may lead to unemployment in some countries
D:in some countries people think that they enjoy the right to have as many children as they like
发布时间:2024-06-13 01:00:01