杰克逊dangerous mv:下面关于北京人的说法不正确的是?

1北京人一天生活，离不开许多种类的打制石器

3.北京人在炎热的夏季也只能穿兽皮衣服

谈论观点（Friendship）
Friendship is extremely important to me. It's like being brothers or sisters, but even more than that. I mean, I would do nearly anything for my friend,and I would expect that he would do the same for me. If he didn't help me when I was in need, then I would not consider him a good friend. I have a lot of different kinds of friends. Some are loud, others are shy. I prefer having a real variety of friends.

I think trust is the most important thing between friends.
The difference is attitude or mindset between adults and children making friend. In general, children like to make friend with good students because they can help each other in studying. But adults make friends with anyone they like.
日记
Today, I went to my mother’s office. My mother was very busy, so was my father. They always live in Beijing. They must get up early. Because they will manage the factory. So I know they are very laborious. So I should save my money. Also I should help them. Although I can’t do something useful, but I think I should share the work with them. I am one of my family member. In the future, I will take a job and work. It’ time for me to begin to learn how to work
书信
Dear Teachers and Classmates,
First of all, please allow me to say ‘Thank you’ to all of you. It is very kind of you to spare your valuable time during the period of final examinations and come to see me.
Your visit has given me much confidence and power to overcome the illness. When I first came to the hospital, I really felt lonely and did not have enough courage and confidence to overcome the illness. Your visit has made me feel that I am not poor and lonely in the world and in fact I am living in a world of love, which has brought me much confidence and power to overcome the illness.
These days, my condition has been obviously improved due to the careful treatment offered by doctors and nurses. Doctors have told me that I will completely recover from illness in two weeks. I hope that I can see you earlier.
Again, special thanks go to all of you.
Sincerely Yours
记叙文
Spring Festival
Spring Festival is the most important festival in China .It’s to celebrate the lunar calendar ‘s new year .In the evening before the Spring Festival ,families get together and have a big meal .In many places people like to set off firecrackers .Dumplings are the most traditional food .Children like the festival very much ,because they can have delicious food and wear new clothes .They can also get some money from their parents. This money is given to children for good luck . People put New Year scrolls on the wall for good fortune .
The Spring Festival lasts about 15 days long .People visit relatives and friends with the words “Have all your wishes ”. People enjoy the Spring Festival ,during this time they can have a good rest
规则
There will be a short class meeting,we will discuss the new class rules.Some of the old rules are ruined and need being improved.We have to put out new rules,eveyone agrees or you will be punished.I think so:Don't sleep in class,Keep quiet,Don't be rude to eveyone,Keep clean,On duty,Don't be later,Don't be leave early,Take more exercises.I hope you will think up them.

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