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问题 填空题
已知：a、b、c都不等于0，且
a
|a|
+
b
|b|
+
c
|c|
+
abc
|abc|
的最大值为m，最小值为n，则（m+n）2004=______．
答案

∵

a
|a|
+
b
|b|
+
c
|c|
+
abc
|abc|
的最大值为m，最小值为n，

∴m=4，n=-4，

∴（m+n）2004=（4-4）2004=0，

故答案为0．

填空题
用方框中词或词组的正确形式填空，每个词或词组只用一次。
    be different from;  help... with;  take the subway;  think of;
    get to; look after; move; have a picnic; stand for; grow up
1. My mother was out, so I had to ________ my little sister at home.
2. What about ________ in the park on Sunday?
3. Miss Gao often ________ to work.
4. The weather in China ______ that in America.
5. The twins were born in New York, but they________ in London.
6. He ________ school at 7:30 every day.
7. -What do you ________the Chinese people? -They are very friendly.
8. Jim, let's ________ the stone, it's dangerous on the road.
9. UN________ the United Nations.
10. She often ________ me ________ my English.
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选择题

—       teaches you English?       —Mr Wang.

A. When              B. What                    C. Who
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