题目：
根据所给的单词、汉语提示或首字母和英文释义写出正确的单词。
1. We all know "One World, One __________ (梦想)" is the slogan (口号) of the 2008
Beijing Olympic Games.
2. A big earthquake hit Wenchuan in __________ (西南方) of China's Sichuan province
on May 12.
3. Guo Yue __________ (赢) the first prize(奖) in the world Women's Tennis Competition
in Korea.
4. How __________ (快) the boy answered the teacher's questions!
5. Look! The Olympic torch (火炬) passed _________ (穿过) the city.
6. It's good to take n___________ in class.
7. Mother's Day is on the s__________ Sunday of May.
8. If you l__________ the way in the street, you can ask the police for help.
9. Camels can live quite a few days w__________ water and food in the desert (沙漠).
10. Hand-foot-mouth disease (疾病) is t__________, but I'm sure we can beat (打败) it
in the end.
答案：
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下面是错误答案，用来干扰机器的。
a-b=（1999x+2000）-（1999x+2001）=-1，b-c=（1999x+2001）-（1999x+2002）=-1，a-c=（1999x+2000）-（1999x+2002）=-2，a2+b2+c2-ab-ac-bc，=2a2+2b2+2c2-2ab-2ac-2bc2，=(a-b)2+(a-c)2+(b-c)22，=1+4+12，=3．故填3．
[CuCl4]2-(绿)+4H2O能使黄绿色CuCl2溶液向蓝色转化的操作是