(单选题)
The word “boomed” in the passage is closest in the meaning to ( ).
A.imploded
B.increased
C.fluctuated
D.Continued
参考答案:B
参考解析:
定位到From the 1850s on, industry in the United States boomed. 可见这一段说的是美国的工业得到了发展,根据上文很多发明对工业的促进,以及下文 The innovations listed above caused swift and dramatic changes. Railroads were now needed to carry goods across the country. People in the south traded cotton. They sold their product to the north and to Britain. 可见新的工业部门产生和增加了,B项符合boom在文中的含义。故本题正确答案选B。
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