题目内容

Food and Health The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to the diet as well, especially cancer of the colon (结肠). Different cultures are more likely to develop certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates (硝酸盐) commonly used to preserve color in meats, and other food additives, accused cancer. Yet, these additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin(青霉素) to beef and poultry(家禽), and because of this, penicillin has been found in the milk of treated cows,Sometimes similar dugs are administered to animals not for medicinal purposes, but for financial reasons, The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue. Food may cause forty percent of cancer in the world.

A. Right
B. Wrong
C. Not mentioned

查看答案
更多问题

简述一种切口裂开减张缝合的方法。

患者,男,25岁,高处坠落伤致双下肢不全瘫而急诊入院。X线及CT证实T12椎体暴裂骨折,碎骨片挤入椎管内并压迫脊髓,T12椎板骨折、无移位。下述哪个治疗方案最合理

A. 立即脱水、给予神经营养药物,3周后根据神经恢复情况再考虑是否手术
B. 经椎弓根外固定架复位及固定
C. 行椎板切除并摘除挤入椎管内的碎骨片,脊柱植骨,内固定
D. 除给予脱水及营养神经药物外,立即行大重量复位牵引
E. 行椎管前外侧减压,切除挤入椎管内的碎骨片,脊柱植骨、内固定

地震是地球最外边一层岩石构成的地壳在运动的表现,是震源所在处的物质发生形体改变和位置移动的结果。发生地震的某些根本性原因还有待探讨,但已经认识到的事实告诉我们:不管地震发生的根本原因是什么,不管哪一种或哪几种物理现象对某一次地震的发生起了主导作用,总是那里的岩石发生了破裂,特别是要把能量转化为机械能才能促使岩石破裂,产生震动。 关于地震,下列叙述不正确的是______。

A. 地震是岩石在力的作用下发生破裂,震动从这里开始
B. 如果岩石像生面团那样有很好的塑性,就不容易发生地震了
C. 绝大多数地震发生在地球最刚硬的部分
D. 平原地区地表都是较好的土壤,所以发生地震的可能性小

A.Ways of Departure from Immature and Simplistic ImpressionsB.Comment on First ImpressionC.Illustration of First ImpressionD.Comparing Incoming Sensory Information Against Memories E Threatening Aspect of First Impressions F Differences Among Jocks,Geeks and Freaks. Paragraph 2______

答案查题题库