[单项选择]For many years it was common in the United States to associate Chinese Americans with restaurants and laundries. People did not realize that the Chinese had been driven into these occupations.
The first Chinese to reach the United States came during the California Gold Rush of 1849. Like most of the other people there, they had come to search for gold. In that largely unoccupied land, the men staked a claim for themselves by placing marks in the ground. However, either because the Chinese were so different from the others or because they worked so patiently that they sometimes succeeded in turning a seemingly worthless mining claim into a profitable one, they became the scapegoats of their envious competitor. They were harassed in many ways. Often they were prevented from working their claims; some localities even passed regulations forbidding them to own claims. The Chinese, therefore, started to seek out other ways of earning a living. Some of them began to do the laundry for th
A. Before 1880s, Chinese people were allowed to come to the United States but they were denied the right of becoming American citizens.
B. From 1882 to 1965 no Chinese were permitted to come to United States because of the Chinese Exclusion Act.
C. The general revision of American immigration laws which allow more Chinese to settle in US was the outcome of World War Ⅱ.
D. During the World War Ⅱ, Chinese were allowed to immigrate again, but the number was controlle