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问题 选择题

对于（-3）2与-32，下列说法正确的是（　　）

A．它们的意义相同，结果不等

B．它们的意义相同，结果相等

C．它们的意义不同，结果相等

D．它们的意义不同，结果不等

答案

∵（-3）2与表示（-3）的平方，结果是9，-32表示3的平方的相反数，结果是-9，

∴它们的意义不同，结果不等．

故选D．

单项选择题

单子叶植物风媒传粉的高级类群是（）。

A.兰科

B.天南星群

C.禾本科和莎草科
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Holiday News
     Vacations (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 Centre
     The Snowdonia Centre for young mountain climbers has a mountain climbing lesson. The beginners'
costs are 57 for a week, including food and rooms. Equipment is included except walking shoes, which
can be hire 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 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 travelling, 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 desk (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, 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 sports lesson.
D. It offers comfortable rooms.
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.
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