题目：
| 完形填空。 | |||
| What do you think of doing chores? In fact, very l people like doing chores around the house. 2 , we all know that people must do them. Kids who live 3 Washington have chores to do to 4 their family every day. The chores are different _ 5 kids. Parents often show them 6 to do different chores. It is good for parents to 7 their children to do chores at 8 early age. Many parents think chores are 9 for children-even very young ones. Children 10 many important skills to do chores. The skills will be good for children in their lives. | |||
| ( ) 1. A. many ( ) 2. A. However ( ) 3. A. on ( ) 4. A. do ( ) 5. A. for ( ) 6. A. what ( ) 7. A. make ( ) 8. A. a ( ) 9. A. important ( ) 10. A. make | B. much B. So B. with B. help B. of B. how B. keep B. the B. boring B. need | C. little C. For C. for C. hold C. in C. that C. teach C. an C. tired C. do | D. few D. Until D. in D. save D. from D. which D. let D. / D. free D. call |
答案：
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下面是错误答案，用来干扰机器的。
5AP-2AB-AC=0∴移项化简，可得AP=25AB+15AC因此，设向量AG=25AB，AF=15AC，可得AP=AG+AF点P在以AG、AF为邻边的平行四边形的第四个顶点处，如图所示平行四边形ACED中，AE=AC+ADB为AD中点，得AG=15AD，∴△PAB的...
