单项选择题

In the second half of the 19th century many great inventions were made．（）

A. 在十九世纪晚期，人们制造了很多重要的东西。
B. 在十九世纪下半叶，有了很多重大发明。
C. 在十九世纪下半叶，人们制造了很多重要的东西。
D. 在十九世纪晚期，有了很多重大发明。

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