法线（Normal）

A/T的Power和Normal键功能是（）。

A:Power指增加发动机动力 B:Normar指增加发动机动力 C:Power更省油 D:Normal更省油

MA5200F存在两种版本形态，simple版本和normal版本，关于这两种版本的描述，下面哪种说法是正确的？（）

A:simple版本可以支持2K用户，但是normal版本只能支持1K用户； B:simple版本可以使用在MA5200F-2000和MA5200F上面，但是normal版本只能使用在MA5200F上面； C:simple版本不能进行用户连接数限制，normal版本可以； D:normal版本支持三层认证业务，simple版本不支持三层认证业务。

第2篇 Doubtful Ways to Reduce and Increase Your Weight You hear this: "No wonder you are fat. All you ever do is eat. " You feel sad: "I skip my breakfast and supper. I run every morning and evening. What else can I do " Basically you can do nothing. Your genes, not your life habits, determine your weight and your body constantly tries to maintain it. Albert Stunkard of the University of Pennsylvania found from experiments that, "80 percent of the children of two obese (肥胖的) parents become obese, as compared with no more than 14 percent of the offspring of two parents of normal weight. " How can obese people become normal or even thin through dieting Well, dieting can be effective, but the health costs are tremendous. Jules Hirsch, a research physician at Rockefeller University, did a study of eight fat people. They were given a liquid formula providing 600 calories a day. After more than 10 weeks, the subjects lost 45ka on average. But after leaving the hospital, they all regained weight. The results were surprising: by metabolic (新陈代谢的) measurement, fat people who lost large amounts of weight seemed like they were starving. They had psychiatric problems. They dreamed of food or breaking their diet. They were anxious and depressed; some were suicidal. They hid food in their rooms. Researchers warn that it is possible that weight reduction doesn’t result in normal weight, but in an ab-normal state resembling that of starved non-obese people. Thin people, however, suffer from the opposite: They have to make a great effort to gain weight. Ethan Sims, of the University of Vermont, got prisoners to volunteer to gain weight. In four to six months, they ate as much as they could. They succeeded in increasing their weight by 20 to 25 percent. But months after the study ended they were back to normal weight and stayed there. This does not mean that people are completely without hope in controlling their weight. It means that those who tend to be fat will have to constantly baffle their genetic inheritance if they want to significantly lower their weight. The findings also provide evidence for something scientists thought was true—each person has a comfortable weight range. The range might be as much as 9kg. Someone might weigh 60-69kg without too much effort. But going above or below the natural weight range is difficult. The body resists by feeling hungry or full and changing the metabolism to push the weight back to the range it seeks.What happened to the eight fat people after they left the hospital

A:They went mad. B:They killed themselves. C:They were back to normal weight. D:They attempted suicide.

? ?You hear this: "No wonder you are fat. All you ever do is eat. " You feel sad: "I skip my breakfast and supper. I run every morning and evening. What else can I do? " Basically you can do nothing. Your genes, not your life habits, determine your weight and your body constantly tries to maintain it.
? ?Albert Stunkard of the University of Pennsylvania found from experiments that, "80 percent of the children of two obese (肥胖的) parents become obese, as compared with no more than 14 percent of the offspring of two parents of normal weight. "
? ?How can obese people become normal or even thin through dieting? Well, dieting can be effective, but the health costs are tremendous. Jules Hirsch, a research physician at Rockefeller University, did a study of eight fat people. They were given a liquid formula providing 600 calories a day. After more than 10 weeks, the subjects lost 45ka on average. But after leaving the hospital, they all regained weight. The results were surprising: by metabolic (新陈代谢的) measurement, fat people who lost large amounts of weight seemed like they were starving. They had psychiatric problems. They dreamed of food or breaking their diet. They were anxious and depressed; some were suicidal. They hid food in their rooms. Researchers warn that it is possible that weight reduction doesn’t result in normal weight, but in an ab-normal state resembling that of starved non-obese people.
? ?Thin people, however, suffer from the opposite: They have to make a great effort to gain weight. Ethan Sims, of the University of Vermont, got prisoners to volunteer to gain weight. In four to six months, they ate as much as they could. They succeeded in increasing their weight by 20 to 25 percent. But months after the study ended they were back to normal weight and stayed there.
? ?This does not mean that people are completely without hope in controlling their weight. It means that those who tend to be fat will have to constantly baffle their genetic inheritance if they want to significantly lower their weight. The findings also provide evidence for something scientists thought was true—each person has a comfortable weight range. The range might be as much as 9kg. Someone might weigh 60-69kg without too much effort. But going above or below the natural weight range is difficult. The body resists by feeling hungry or full and changing the metabolism to push the weight back to the range it seeks.

What happened to the eight fat people after they left the hospital?

A:They went mad. B:They killed themselves. C:They were back to normal weight. D:They attempted suicid

A:irregular B:better C:normal D:worse

Kleptomania is an illness of the mind that gives a person the desire to steal. Such a person is not really a thief. They are sick and cannot help themselves. All small children act naturally and as they grow up they normally learn to control their actions. People with kleptomania for certain medical reasons have failed to develop control over their desire to take things that do not belong to them. With medical help they may become normal citizens again. The things that a kleptomaniac steals are seldom of great value. They often give away what they have stolen or collect objects without using them.
What is the topic of the text

A:Young Thieves B:An Unusual Illness C:Reasons for Stealing D:A Normal Child’s Actions

Hypertension is the medical term for persistent and sustained high blood pressure. It is one of the most (51) forms of heart disease. An understanding of blood pressure in (52) , healthy individuals is necessary in order to understand hypertension.
Blood pressure is simply the force (53) against the walls of the body’s arteries (血管) as blood flows through. The force, produced primarily by the pumping (54) of the heart, is essential for the (55) of the blood and its life-supporting nutrients(营养) to all parts of the body. Every time the heart (56) , called a systole, blood pressure increases. When the heart relaxes (57) beats(diastole), the pressure decreases. The normal systolic pressure of a person at vest is between 100 to 140, and the normal diastole is 60 to 90. Blood-pressure readings are expressed by both (58) , with the systolic over the diastolic: for example, 140/90.
As these ranges suggest, there is a wide (59) of blood pressure for healthy people. Also, blood pressure (60) for healthy people during different times of the day and under different. (61) . It is lower when an individual is asleep than when he is excited or exerting himself physically. Therefore, a single blood-pressure reading above 140/90 does not (62) abnormality. When the pressure is continuously (63) , a person is considered to be suffering from hypertension.
Hypertension is a stealthy(隐秘的) problem: a physician can discover it easily enough, but not a patient. (64) elevations, for example, may produce headaches, dizziness, fatigue, and weakness. But the patient is not likely to (65) these symptoms as having any other source than the increased elevation.

52（）

A:average B:normal C:regular D:steady

A:average B:normal C:regular D:steady