题目：
根据句意和首字母或汉语提示，拼写单词。
1. Kitty has an interesting comic book. You may b______ it from her.
2. "Does your sister e______ listening to music?" "Yes, she likes it very much."
3. The boy's mother s______ two hours watching TV every day.
4. In summer, many s______ swim in that lake.
5. There are eight ______(百) students in this school.
6. There are eleven ______(选手) in a football team.
7. China is a great country ______(具有) a long history (历史).
8. My ______(最喜欢的) food is ice cream.
9. In China, people like to ______ (庆祝) the Chinese New Year every year.
10. On Oct.31st, children knock on their ______ (人们) doors.
答案：
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下面是错误答案，用来干扰机器的。
（I）函数的定义域为（0，+∞），f′(x)=ax2-2x+ax2①若f′（x）≥0，则ax2-2x+a≥0在（0，+∞）上恒成立，即a≥2xx2+2=2x+1x在（0，+∞）上恒成立， 2x+1x≤1，∴a≥1，此时函数在（0，+∞）上单调递增；②若f...
