如图所示，将一乒乓球分别放入盐水、纯水、酒精中漂浮时（ρ盐水＞ρ水＞ρ酒精），乒

营养不良患儿皮下脂肪消耗的顺序是（）。

A.面颊→躯干→腹部→臀部→四肢

B.躯干→腹部→臀部→四肢→面颊

C.臀部→四肢→面颊→躯干→腹部

D.腹部→躯干→四肢→面颊→臀部

E.腹部→躯干→臀部→四肢→面颊

关系数据库是 （14） 的集合，其结构是由关系模式定义的。

A．元组

B．列

C．字段

D．表

固定资产投资（月报口径）由500万元及以上建设项目投资和房地产开发投资构成。（）

阅读理解。

     Jogging has become the most popular individual sport in America. Many theories, even some mystical

ones, have been advanced to explain the popularity of jogging. The plain truth is that jogging is a cheap,

quick and efficient way to maintain physical fitness.

     The most useful sort of exercise is exercise that develops the heart,lungs, and circulatory (血液循环

的)systems. If these systems are fit, the body is ready for almost any sport and for almost any sudden

demand made by work or emergencies. One can train more specifically, as by developing strength for

weight lifting or the ability to run straight ahead for short distances with great power as in football, but

running trains your heart and lungs to deliver oxygen more efficiently to all parts of your body. It is worth

doing that: this sort of exercise is the only kind that can reduce heart disease, the number one cause of

death in America.

     Only one sort of equipment is needed - a pair of good shoes. Physicians advise beginning joggers not

to try to run in tennis or gym shoes. Many design advances have been made in only the last several years

that make a pair of excellent running shoes indispensable (不可缺少的) if a runner wishes to develop as

quickly as possible,with as little chance of injury as possible. A pair of good running shoes will have soft

pads for absorbing shock, as well as slightly built-up heels and full heel cups that will give the knee and

ankle more stability. A wise investment in good shoes will prevent blisters (水泡)and the foot,ankle and

knee injuries and will also enable the wearer to run on paved or soft surfaces. No other special equipment

is needed; you can jog in any clothing you desire, even your street clothes.

     It takes surprisingly little time to develop the ability to run. The American Jogging Association has a

twelve-week program designed to move from a fifteen-minute walk (which almost anyone can manage

who is in reasonable health) to a thirty-minute run. A measure of common sense, a physical examination,

and a planned schedule are all it takes.

1. The main purpose of this passage is to ________.

A. discuss jogging as a physical fitness program        

B. describe the type of clothing needed for jogging

C. provide scientific evidence of the benefits of jogging

D. launch a worldwide physical fitness campaign

2. The most effective kind of exercise should be the one that ________.

A. trains the body for weight lifting                  

B. enables a person to run straight ahead

C. is both beneficial and inexpensive                

D. develops the heart, lungs, and circulatory systems

3. What can we learn from the third paragraph?

A. For beginning joggers, tennis or gym shoes are better choices.

B. A pair of good running shoes is necessary for a runner to develop quickly.

C. A pair of good running shoes with a full heel-cup is designed to prevent shock.

D. Comfortable pads will give the knees and ankles more stability.

4. The author's attitude towards jogging is ________.

A. doubtful

B. critical    

C. approving     

D. negative

"阳中求阴"治法的病理基础是（）

A.阴偏胜

B.阳偏衰

C.阴偏衰

D.阳偏胜

E.阴阳两虚