在网页地址“http：//www.educity.cn/main/index.htm”中，“index.htm”是（）

SECTION B NOTE-WRITING （10MIN）Write on the ANSWER SHEET ONE a note of about 50-40words based on the following situation：It is reported that Newly Selected Reading of American Literature has been published.You want to have one for your postgraduate examination.Write a note of about 60words asking the price and the way how you pay for it.Marks will be awarded for content，organization，grammar and appropriacy. 点击查看答案

8个二进制位至多可以表示（）个数据。

A.8
B.64
C.255
D.256

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