单选题
What is the main theme of the following passage?
A、
Strengths of paper books over E-books.
B、
Projected extinction of paper books.
C、
Market prospects of E-books.
D、
The history of paper books.
【正确答案】
A
【答案解析】
此题为快速浏览题。据第1段及后几段主题句(黑体字)可知。
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