2. 外语
  3. In the construction of cross-country railroads in the 1860s,______played an important role.

In the construction of cross-country railroads in the 1860s,______played an important role.

admin2012-07-11  38
问题 In the construction of cross-country railroads in the 1860s,______played an important role.
选项 A、Black Americans
B、Hispanics
C、Chinese laborers
D、Japanese-Americans
答案C
解析
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