题目内容

Gold was discovered in California in ——————

A. 1828
B. 1838
C. 1848
D. 1858

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The first transcontinental railroad in the US was completed in————

A. 1850
B. 1859
C. 1869
D. 1890

The agricultural Adjustment Act was an attempt to deal with the farmers’ problem of ————

A. soil erosion
B. declining labor supply
C. inflation
D. overproduction

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