英语作文应该怎么写视频【一】
可以包括两部分：对模型基本假设的介绍以及基本模型以及相应命题。因为每一个观点的得出都离不开具体的环境所以需要了解最重要的几个假设。为了加深理解了解模型的基本框架也是很重要的。
样本1
本文首先是“定义”了企业再“证明”企业的边界。这一定义包括三个核心假设：不区分没有资产的雇员和外部承包商(outside contractor;一体化不改变双方的信息结构只是转移而非消除了机会主义行为[1];再谈判无成本从而避免无效的“科斯定理”。
[1] 作者认为tce将一体化等同于完全契约的功能但是后来威廉姆森(尤其是1991深化了tce对官僚成本的分析从而从另一个角度刻画了“所有权的成本”。
此主题相关图片如下：
英语作文应该怎么写视频【二】
They are afraid we will have accidents as the river has no safty measures.
So, of course, we should go to the river for swimming. It may takes our life for no reason.
It is very cruel. Sometimes we can hear the news that someone die because of swimming in the river.
If we want to swim, we can go to the swimming pool with adults. This is safe. And we can also ask a teacher to teach us. Just remember, do not go to the river to swim secretly. We should take responsibility for ourselves.
大人们总是警告我们不要要江河水库游泳。他们担心我们会发生意外，因为江河水库没有相关的'安全措施。所以，我们当然不能去江河水库游泳了。这很有可能会突然就夺走我们的生命，是很残酷的。有时候我们也会听到一些新闻说有人因去江河水库游泳而丧命。如果我们想要游泳，我们可以在大人的陪同下去游泳池游泳。这样是安全的，我们也可以请教练教我们。一定要谨记，不要私自到江河水库游泳。我们要对自己负责任。
英语作文应该怎么写视频【三】
these young people are wrong. in my opinion every student should have a knowledge of housework. after all, they will have a family of their own, and they should do their part in keeping a good home. boys should also learn to do housework, for what will they do if they remain single? though not all boys remain single, yet they will be very helpful in the family if they know some housework. anyhow they will not lose anything, but, on the contrary, they will gain something useful.
for what i said above, we can find some eamples of our fellow-students studying abroad. all young men do housework as girls do. someone would argue that we can employ servants. this is true. however, what shall we do if the servant leaves us and all things are left to ourselves? we just cannot leave our clothes as they are and let worms and ants eat them up. and what can we do it we go and study in a foreign country where servants are out our means to employ? we must work for ourselves. why not start to learn to do housework now or else it will be too late? everyone should learn to do housework. what do you think about my idea, boys and girls?
英语作文应该怎么写视频【四】
胡萝卜
如果你是个彻彻底底的宅女，元旦最开心的事情就是可以无所顾忌地网购high翻天，那么，别忘了顺便买点胡萝卜。有了它，能让你辛勤面对电脑的眼睛依然保持明亮，而且不用担心久坐之后的便秘困扰，因为它蕴含的胡萝卜素能补肝明目，植物纤维则能加强肠道的蠕动。
红苹果
在这个节日扎堆的时刻，忙碌于各个聚会的你，总免不了偷偷计算一下今天的卡路里是不是已经超标。别担心，有了它的帮忙，不仅能促进体内胆固醇的代谢，而且富含的维生素C一定让你像它一样闪闪惹人爱。
番茄
因为它艳丽的色彩，也曾经获得过“爱情果”的美名。当然，它并非徒有其表，有了胡萝卜素和维生素C两大法宝，爱美的你自然不能错过。另外它酸酸甜甜的口感，在这个喜庆的节日也必定能让你食欲大开。
红枣
它是你一定不要错过的闺中蜜友，不管是信手拈来一两颗当作小零食，还是泡茶熬粥，都是补虚益气、养血安神的上上之选，让你在情人节气色大好，心情更好。
红辣椒
“三个辣椒，顶件棉袄”，它的辣味素能让你心跳加速，血管扩张，想不发热都不行，拒做“冰山美人”，还等什么，把你的筷子伸向它吧!此外，它还能让你食欲大开，而且不用担心发胖的问题，因为它能让体内脂肪尽情燃烧。
