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问题 选择题
一个等腰三角形，其中两个内角的度数比是4：1，这个等腰三角形的顶角不可能是（　　）度．
A．120B．80C．20
答案

答案：B

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Part 2


Questions 9-18


Read the following passage and answer questions 9-18.
1. Most young people enjoy some forms of physical activity. It may be walking, cycling or swimming, or in winter, skating or skiing. It may be a game of some kind football, golf, or tennis. It may be mountaineering.
2. Those who have a passion for climbing high difficult mountains are often looked upon with astonishment. Why are men and women willing to suffer cold and hardship, and to take risks on high mountains This astonishment is caused probably by the difference between mountaineers and other forms of activity to which men give their leisure.
3. Mountaineering is a sport and not a game. There are no man-made rules, as there are for such games as golf and football. There are, of course, rules of a different kind which would be dangerous to ignore, but it is this freedom from man-made rules that makes mountaineering attractive to many people. Those who climb mountains are free to use their own methods.
4. If we compare mountaineering with other more familiar sports, we might think that one big difference is that mountaineering is not a "team game". We should be mistaken in this. There are, it is true, no "matches" between "team" of climbers, but when climbers on rock face linked by a rope on which their lives may depend, there is obviously teamwork.
5. The mountain climber knows that he may have fight forces that are per and more powerful than man. He has to fight to against the forces of nature. His sport requires high mental and physical qualities. A mountain climber continues to improve in skill year after year. A skier is probably past his best by the age of thirty, and most international tennis champions are in their early twenties. But it is not unusual for a man of fifty or sixty to climb the highest mountains in the Alps. They may take more time than young man, but they probably climb with more skill and less waste of effort, and they certainly experience equal enjoyment.

Questions 9-13


·For questions 9-13. choose the best title for each paragraph from below.
·For each numberedparagraph (1-5), mark one letter (A-G) on the Answer Sheet..
·Do not mark any letter twice.
  • A. Mountaineering is different from golf and football.
  • B. Mountaineering is treated as a team sport.
  • C. The requirements needed for climbers.
  • D. Many young people enjoy some forms of physical activity.
  • E. A mountain climber’s skill is not limited by his age.
  • F. The reason why people enjoy climbing mountains.
  • G. Mountaineering is a sport rather than a gam

Paragraph 1: ______
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单项选择题 A3/A4型题

患者女性，24岁。孕1产0，肛查：宫口已开全，胎头矢状缝与骨盆横径相一致，小囟门在9点，大囟门在3点。

根据分娩机制，胎头能够娩出枕部需旋转（）

A.顺时针转45°

B.顺时针转90°

C.逆时针转45°

D.逆时针转90°

E.不需要转动
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