赞题库-背景图

单项选择题

According to the passage, a large population will produce a chance for developing ______.

A．agriculture
B．transport system
C．industry
D．national economy

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热门试题

单项选择题One of the difficulties in carrying out worldwide birth control is that ______.

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

单项选择题To food a large population, ______.

A．inferior land must be cultivated
B．good land must work intensively
C．each person must produce less
D．Both A and B.