明成祖时期，设立的特务机构是（）A.锦衣卫 B.东厂 C.西厂 D.内阁

在数轴上，表示与﹣2的点距离为3的数是（     ）

患者，女，56岁，半年前出现胸闷、气短症状，1个月前心脏彩超检查提示风湿性心脏病，重度二尖瓣狭窄。心电图示心房颤动，心室率快，ST-T改变。1周前行二尖瓣人工心脏瓣膜置换术。术后恢复良好。诊断：风湿性心脏病、二尖瓣置换术后；心房颤动。医嘱：

患者所使用药物中需要监测血浆药物浓度的是（）

A.地高辛

B.呋塞米

C.螺内酯

D.卡托普利

E.阿司匹林

读图分析判断下题:

小题1:岩石圈的厚度: (　　)

A．平均17千米

B．大于地壳平均厚度

C．小于地壳平均厚度

D．约2900千米小题2:结合上图，当某海域海底发生地震时，位于该海域的轮船将出现什么现象？且与图中表示的哪种波有关(　　)

A．只上下颠簸，横波

B．先上下颠簸，后左右摇晃，横波

C．先左右摇晃，后上下颠簸，纵波

D．只上下颠簸，纵波

戊戌变法时，社会上流传一首打油诗：“大半旗装改汉装，宫袍裁作短衣裳。脚跟形势先融化，说道莲钩六寸长。”下列对此说法正确的是①诗中涉及易服和不缠足等社会现象 ②因为维新人士的倡导，断发和不缠足均得以实现（   ）

A．①②都正确

B．①②都不正确

C．①正确，②不正确

D．①不正确，②正确

Any diet on which you eat fewer calories than you need to get through the day — like an 800-calorie-per-day diet can be dangerous. Diets that don't allow any fat also can be bad for you. Everyone needs a certain amount of fat in their diet — up to 30% of total calories — so no one should eat a completely fat-free diet.

Don't have diets that restrict （限制）certain food groups, either. A diet that requires you to say no to bread or pasta or allows you to eat only fruit is unhealthy. You won't get the vitamins and minerals you need. And although you may lose weight, you'll probably gain it back as soon as you start eating normally again.

Some people start dieting because they think all the problems in their lives are because of weight. Others have an area of their lives that they can't control, like an alcoholic parent, so they focus on something they can control — their exercise and food intake.

People who diet may get lots of praise from friends and family when they start losing pounds, which makes them feel good. But eventually a person reaches a weight level — and doesn't lose as much weight as before because the body is trying to keep a healthy weight, so they aren't any happier.

Some people may find it hard to control their eating, so they stick with an extreme diet for a little while, but then eat tons of food. Feeling guilty about the binge, they use laxatives（泻药）. Eating too little to maintain a healthy weight or eating only to throw up the calories are both eating disorders, which are harmful to a person's health.

1. Which is not the result of restricting certain food groups?

A. lose weight for a short period         B. unhealthy  

C. short of nutrition                     D. hungry

2. The reasons why some people start and keep dieting DON’T include__________.

A. They think their trouble comes from their weight.

B. They have an alcoholic parent.

C. Other people’s praise when they lose some weight.

D. There is something they can’t control except food intake.

3. The underlined phrase in the last paragraph refers to _________.

A. a fat-free diet               B. a special diet   

C. eating too much            D. eating too little

4. Which of the following statements is true?

A. A person needs about 800 calories each day.

B. A person who doesn’t eat bread is unhealthy.

C. An improper diet may cause eating disorder.

D. Fat takes up the most part of calories inside body.

5. According to the passage, when people want to lose weight, they should_________.

A. avoid eating some food that can lead to being fat   B. control their eating amount and times

C. have a healthy and balanced diet                D. throw up some of what they eat