已知a,b互为相反数,c,d互为倒数,且m是最大的负整数,求m+cd+(a+b)2的值?
根据题意得:a+b=0,cd=1,m=-1,
则原式=-1+1+0=-2.
用表示“看”的单词或短语填空,注意形式正确。
1. Li Lei often _____ TV.
2. Miss Wang likes _____ books.
3. _________! Someone is dancing on the playground.
4. The old man often _______ football matches.
5. I _________ the blackboard, but I can't ______ any words on it.
6. What magazine do you _______?
7 _____ the picture on the wall.
8. ____! Here comes the bus.
页式存储系统的逻辑地址是由页号和页内地址两部分组成。假定页面的大小为4K,地址变换过程如下图所示,图中逻辑地址用十进制表示。
图中有效地址经过变换后,十进制物理地址a应为()。
A.33220
B.8644
C.4548
D.2500