按从小到大排列为____．

在以“力”为主题的辩论赛中，正方和反方提出了许多观点，小明把他们的观点归纳整理如下，你认为正确的观点有（ 　）

①两个物体相接触，就一定有力的作用   ②两个物体相接触，但不一定有力的作用

③力的产生至少涉及两个物体           ④一个物体也可以产生力的作用

⑤受力物体对施力物体没有力的作用         ⑥施力物体同时也受到受力物体的作用

    The world is an interesting place. Different people like 1 things. Some people like loud music. 2 people don't. They like 3 music.

    Many people like sports, but they do not 4 the same sport. In some countries, cricket(板球运动) is a very popular sport. In others it is not popular 5 all. No one plays it or watches it on TV. 6, most people like soccer. The World Cup is very popular. 7 of people watch the games on TV.

    Different people like different 8. Some people don't like meat. They eat fruit and vegetables 9 of the time. Some people don't like 10 or bread. They prefer rice.

    Not everyone likes the same colour. Most people have 11 favourite colours. Some people like 12 colours. Others prefer dark colours.

    Many people like 13. Different people like different places. Some people like going to the country. They like fresh air. Some people like going to cities because they like 14. Some other people enjoy beautiful places like mountains or beaches.

    15 do you like? Have you got an idea?