A-A+
A.Modern industry must have developed before t
问题详情
A.Modern industry must have developed before the Middle Ages.
B.Modern industry must have developed around the 19th century.
C.Modern industry must have developed in Greece or Rome.
D.Modern industry must have developed machines to take tests.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
【解题思路】1．四项均为完整句子，均以modernindustrymusthavedeveloped开头。2．三项以介词加时间或地点结尾。结论：本题与现代工业的发展有关，需重点关注与时间和地点有关的信息。【解析】短文中间部分提到，笔试是19世纪才为人们所知的，可能是随着人口的大规模增长和现代工业的发展而出现的。由此可知，现代工业在l9世纪左右开始发展。故选B。
