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提问人：网友jnruankao
发布时间：2022-01-07
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if you want to change the position of the head line forward for 3 meters, what do you say？
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更多“if you want to change the position of the head line forward for 3 meters, what do you say？”相关的问题
第3题
If you are not ready to prove your points, you should explore your topic further, perhaps in a follow-up brainstorming session.
第4题
Imagine eating everything delicious you want—with none of the fat. That would be great, wouldn't it?
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New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate. Critics, however, say the new compound can rob the body of essential vitamins and nutrients (营养物) and can also cause unpleasant side effects in some people. So it's up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can't be digested at all.
Normally, special chemicals in the intestines(肠)"grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatting acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broke down. Manufacturers say it's the ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular at without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids(类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc.
Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.
We learn from the passage that olestra is a substance that______.
A．contains plenty of nutrients
B．renders foods calorie-free while retaining their vitamins
C．makes foods easily digestible
D．makes foods fat-free while keeping them delicious
第5题
完形填空????Can you really make out the difference...
| 完形填空 Can you really make out the difference between British Isles, Britain, United Kingdom and England？ These terms are familiar to us, but meanwhile ____1_____to us Chinese. The British Isles are made up of two large ____2____: One is Britain and the other Ireland. Britain, or Great Britain, is the ____3____of the two islands, which is ___4_____ into three parts: England, Scotland and Wale.The United Kingdom (UK) is short for the United Kingdom of Great Britain and Northern Ireland. UK ____5___ Scotland, Wales and England (i.e. the whole of Britain), and also about one-sixth of Ireland, the northern part. The ____6____ of Ireland called the Republic of Ireland is another country. England is the largest of the four, and generally speaking, the richest section. Its capital is London, ____7____ is also the capital of the UK. London lies on the River Thames. Much of England is rather flat, although there are ____8____ in the northeast and in the center of the country. English people tend to use the ____9____ "England" and "English" when they mean "Britain" and "British". This sometimes upsets the Welsh and the Scots as they are not included. "Why don't they use 'Walsh' or '____10___' ？" they may wonder. London is beautiful. Today, you cannot deny the beauty, myth, and wonder of the River Thames, which has good ____11____. However,in the nineteenth century, in some books, the Thames was ____12____ as a grey, dirty, smutty, sooty, smoky river. These were not only existing in nineteenth century. It had ____13____ been like this for centuries,never clear. At that time, many ordinary people were ___14to cholera. This was the ____15____ disease of its day. Neither its cause nor its cure was understood. No one knew the disease just came from the ___16water. So many thousands of ___17_______people died every time there was an(a) ___18. Disasters like these always remain us unforgettable lessons. Now you know England is of course different from the UK. At present, the UK played an important part in the ____19____affairs. It is a member state of the United Nations, ____20____ the European Union and NATO. "The UN, the UK and the US often go hand in hand in the world," people joke. Do you think so？ | ||||
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