单项选择题
During the third wave of immigration from 1890 to 1910,many came from（）
A.Britain and the Netherlands B.Austria-Hungary and Russia C.Japan and China D.Mexico and Cuba
单项选择题 Between 1845 and 1854,about 1.5 million Irishmen emigrated to United States because of（）
单项选择题 Up to the end of WW II,there were（）waves of large-scale emigration to the United States.
单项选择题 The population between the age of 25 and 44 increased by 28.1%from 1980 to 1989 because（）
