单项选择题

Which of the following records has been a source of information in the author's investigation

A．United States Immigration Service reports from 1914 to 1930.
B．Payrolls of southern manufacturing firms between 1910 and 1930.
C．The Volume of cotton exports between 1898 and 1910.
D．The federal census of 1910.

<上一题目录下一题>

热门试题

单项选择题

We can learn from the first paragraph that _____________.

A．the collapse of the cotton industry and increased demand in the Northern for labor caused the Great Migration
B．the black workers were used to urban living quite well
C．wages were pretty low in northern cities
D．the black workers in the North earned less than they did in south with the development of the mechanization

单项选择题

It can be inferred from the passage that easy conclusion (Para. 3 ) is based on the assumptions that

A．people who migrate from rural areas to large cities usually do so for economic reasons
B．most people who leave rural areas to take jobs in cities return to rural areas as soon as it is financially possible for them to do so
C．people with rural backgrounds are less likely to succeed economically in cities than are those with urban backgrounds
D．most people who were once skilled workers are not willing to work as unskilled workers

相关试题