单项选择题

It will be a few years before we can see electronic book for sale because ______.

A．we haven't mastered the manufacturing technology yet
B．the electronic ink which must be conductive couldn't be produced in large scale
C．the electronic book will be too expensive to buy
D．you can't take an electronic book with you anywhere
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单项选择题
The author of the passage wants to tell that _______.
A．Americans like sports and sports reveal much about the changing ethnic structure of the United States
B．in Washington, several games are played in one day
C．Americans like all kinds of games
D．the American games are watched by native-Americans and played by people from different countries
单项选择题
About electronic book, which of the following statements is NOT true
A．It can contain a library of information or every title on today's best-seller list.
B．Although we know the basic technology, we can't see it for sale now.
C．The laptop needs a lot of power to keep LCD screens work, and those screens have shortcoming.
D．You can change the title and the content in the electronic book as you like.
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