According to the passage, which book is the only book you’ll ever need? What is the main difference between an electronic book

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问题 According to the passage, which book is the only book you’ll ever need?
What is the main difference between an electronic book and a LCD screen?

选项 A、The power they need.
B、The portability they come to.
C、The convenience they make.
D、The content they store.

答案A

解析 本题测试的是文章的细节部分。电子书和液晶显示屏在文章的第六段给予了详细说明:Unlike an LCD screen,which uses power all the time,energy is no longer needed to view the electronic book’s pages once they are typeset.(它和液晶显示屏不一样,液晶显示屏时时都离不开电源,而电子书一旦排好字,观看时再也不需要能量)。B项、C项和D项三项中涉及到的便携性、方便性及内容在文章中作者都未作对比,因此排除之而选A项“他们需要的电源不同”。
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