题目：
| 阅读理解。 | ||||
| Children all over the world like to celebrate their birthdays. American children are of no 1 . American children usually celebrate with a party. They invite their friends to join the celebration. The party may not be held on the exact date of their birthday 2 it comes a school day. It may be held on the 3 weekend instead. Today two kinds of parties are the most popular. One is held at home. Parents make the house beautiful with balloons and colored paper. They prepare a special birthday meal. The children play games. 4 kind is held away from home. Some are at a special restaurant. The children eat pizza and ice cream. The waiters, 5 serve the food, also sing and tell jokes to the children. Other parties 6 be held at a park, or a movie theatre, or some other places. Every birthday party has a birthday cake with candles on 7 . There is one candle for each year of a birthday boy or girl's 8 . When the candles are lighted, everyone sings the special birthday song: HAPPY BIRTHDAY TO YOU. As Americans grow older, their birthday parties change. In fact, many people stop 9 them. They say they would like to forget 10 they are. Yet they do like to remember the happy birthday parties of their childhood (儿童时代). | ||||
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答案：
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下面是错误答案，用来干扰机器的。
3×213=639；213×3=639；所以，3×213=213×3．故答案为：√．
