The behavior of the pig 600字高中英语作文

　　Because of scientific experiments, I university in 1989 ~ 1991 in Paris,northwestern university in the United States from 1997 to 1998, every month to coexist with a pig for a long time. My job is in making all kinds of pig heart and the aorta has yet to carry out the surgery.Our animal center of pigs with ordinary pigs, they are very lovely. They are collective captive in the large room, skipping played with, as if is still live in the cottage. Actually do more than the farmhouse here such as "pigs" : constant temperature, humidity, uv lamp and covered the ground broken sawdust is one to two inches thick, the toilet is fixed in the corner. Small creatures to take a bath every day, so they all fuzz regardless of black and white, is very bright and clean. Most people think the pig is dirty and it is too wronged them. The pig is not only clean, it is still very heavy affection, is willing to be alone. If the technician will respectively in their own small cage, or quotas in pigs, they become listless all day, unhappy. Every pig ear wearing a small metal "id card", like a earrings, above indicate that the pigs,Whenever they withstand test operation, and vitality to gulp down, we will be happy.

Food additives

　　As the saying goes: & quot; The food is. & quot; In recent years,our environment has become increasingly serious food safety, such as tainted milk powder,such as tainted milk powder, dyed steamed bread events appear constantly, people can not help but ask, food additives, safe?

　　food additives is approved by the state, because of antisepsis, improve the processing technology and so on need to join in food chemical synthetic or natural substances.The hygiene standards of using food additives in China will be pided into its preservative, curing agent,nutrition enhancer etc. More than 1500 kinds of 22 classes. When human food into industrial production, in addition to a few natural wild food, almost nothing is without additives.