单选题
What can be inferred from the passage about the agricultural sector of the economy after the Civil War?______
A、
New technological developments had little effect on farmers
B、
The percentage of the total population working in agriculture declined
C、
Many farms destroyed in the war were rebuilt after the war
D、
Farmers achieved new, prosperity because of better rural transportation
【正确答案】
B
【答案解析】
第一段第一句指出，南北战争之后的半个世纪，美国从事非农业人员在数量上和百分比上都快速增加。可以推知，从事农业的人口相应减少。
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