What is the controversial point between the publishers and the technology companies？
A. The publishers hope they can offer books of top quality.
B. The publishers hope they can respect copyright of original books.
C. The publishers hope they can provide the comments.
D. The publishers hope they can digitize as many books as possible.
I／O设备直接与______相连接。
A. 主机
B. CPU
C. 主存储器
D. I／O接口
Which of the following is true of Google according to the text？
A. It will invariably provide free online reading for its customers.
B. It has become the world's most popular book publisher.
C. It facilitates books reading and searching to a larger extent.
D. It has gained permission to publish the complete books online.
下列存储器中存取周期最短的是
A. 内存储器
B. 光盘存储器
C. 硬盘存储器
D. 软盘存储器
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