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问题 填空题

以一定的初速度竖直向上抛出一个小球，小球上升的最大高度为h，空气阻力的大小恒为f，则从抛出至回到原出发点的过程中，重力对小球做的功为____________，小球克服空气阻力做的功为____________。

答案

0，2fh

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阅读理解。
                                                  Holidays
                                                 Holiday News
     Vacancies (空位) now and in the school holidays at a country hotel in
Devon. This comfortable, friendly home-from-home lies near the beautiful
quiet countryside, but just a drive away from the sea. The food is simple but good. Children and pets are welcome. Reduced prices for low season.

                                       The Snowdonia Center
     The Snowdonia Center for young mountain climbers has a mountain
lesson. The beginners' costs are ￡57 for a week, including food and rooms. Equipment is included except walking shoes, which can be hired at a low
cost.
     You must be in good health and prepared to go through a period of
body exercises. This could be the beginning of a lifetime of lifetime of mountain
climbing adventure.

                             The World Sea Trip of a Lifetime
     Our World Sea Trip of 2008 will be unlike any holiday you have ever
been on before. Instead of one hotel after another, with all its packing and
unpacking waiting and traveling, you just go to bed in one country and
wake up in another.
     On board the ship, you will be well taken care of. Every meal will be
first-class and every cabin like your home.
     During the trip, you can rest on deck(甲板), enjoy yourself in the
games rooms and in the evening dance to our musical team and watch our
wonderful play.
     You will visit all the places most people only dream about - from
Acapulco and Hawaii to Tokyo and Hong Kong.
     For a few thousand pounds, all you've ever hoped for can be yours.
1. What can you do if you like to go on holidays with pets?
A. Choose the holiday in Devon.
B. Go to the Snowdonia Centre.
C Join the World Sea Trip of 2008.
D. Visit Acapulco and Hawaii.
2. In what way is the Snowdonia Centre different from the other two holidays?
A. It provides chances of family gatherings.
B. It provides customers with good food.
C. It offers a sport lesson.
D. It offers comfortable room.
3. What is special about the World Sea Trip of 2008?
A. You can have free meals on deck every day.
B. You can sleep on a ship and tour many places.
C. You will have chances to watch and act in a play.
D. You have to do your own packing and unpacking.
4. At the Snowdonia Centre, the beginners' costs of ￡57 do not cover  _____.
A. food
B. rooms
C. body exercises
D. walking shoes
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多项选择题

对于民法调整的人身关系和财产关系，下列说法不正确的是( )。

A．人身关系都具有固有性

B．民法所调整的人身关系与特定人身利益为内容，不直接具有财产性质

C．侵害人身利益的情形下刑罚保护手段更严厉，所以可以代替民法保护手段

D．民法调整的人身关系可以和主体分离

E．人身关系具有非财产性，所以与财产关系没有联系
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