单选题
Why did the author mention railway construction at the beginning of the passage?
A、
(A) to serve as a background of the passage.
B、
(B) to illustrate the wild ups and downs of the railway industry
C、
(C) to introduce the fatalistic view that recession, however unpleasant, is necessary.
D、
(D) to display the relationship between industrial development and employment rate.
【正确答案】
C
【答案解析】
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