钻井液的粘度小，对井底冲击力强，所以粘度越小越好。

阅读理解。

     Michelle Wie, from America, is like a lot of other young girls in many ways. She is a good student, and

she is a good student, and she likes reading, drawing, and computers. However, in some other ways, she is

very different. She doesn't spend much time going out with friends or shopping or going to parties. She's

very busy practicing golf.

     Michelle Wie is the best woman golfer for her age in the world. She was born in 1989. In 1999, at the

age of 10, she began to win games against woman twice her age. At 13, she could hit the ball further than

most of the women in the Ladies Professional Golf Association (LPGA). At 14, she showed she could hit

the ball further than most men.

     Wie began playing golf at the age of four. When she grew older, she played about four hours a day on

weekdays and seven hours a day on weekends. Another thing that helped he was that she was tall. By the

time she was 13, Wie was six feet tall. She's a joy to watch. She has the flexibility of a dancer and also is

very strong. And its clear that she loves the game.

1. When did Michelle Wie start playing golf?

A. At 4

B. At 10

C. At 13

D. At 14

2. What does she often do after school?

A. Going out with her friends.

B. Shopping with her family.

C. Going to parties.

D. Practicing golf.

3. How long did she practice on weekends when she grew older?

A. 3 hours

B. 4 hours

C. 7 hours

D. 8 hours

4. What makes her a successful golfer?

A. Dance.

B. Practice.

C. Drawing.

D. Computers.

5. Which of the following is the best title for this passage?

A. Michelle Wie, A Good Student

B. Michelle Wie, A Young Winner

C. Women Golf Players

D. Golf Games For Women

病历摘要：患者男性，28岁。右胸外伤后肋骨骨折，并出现极度呼吸困难，紫绀，烦躁不安等表现。体格检查：血压10/8Kpa，脉细速，皮肤湿冷，气管向左偏移，颈静脉充盈，头颈及右胸皮下气肿，右侧胸廓饱满，肋间隙增宽，呼吸幅度减低，叩诊鼓音，右肺呼吸音消失。

该病人有以下哪些病理生理改变？（）

A.胸膜腔内压力增高

B.肺完全萎缩

C.纵隔移位

D.静脉回流受阻

E.纵隔摆动

F.循环功能障碍

G.伤侧胸膜腔负压消失

H.呼吸功能障碍

辐照后的红细胞，保存最佳时间不超过（）。

A.14天

B.21天

C.28天

D.35天

E.42天

白斑的发病特点如下，除外

A．与吸烟有关
B．女性多于男性
C．与刺激食物有关
D．发病以中老年较多
E．与某些全身因素有关

简述人的身心发展的特殊性。