汽轮机停机及减负荷时，转子表面承受拉伸热应力，转子中心孔承受压缩热应力（）

昆虫一次能产生大量的卵是遗产和适应环境的结果。 [ ]

烧伤暴露疗法护理的基本要求是保持（），促使创面结痂，并保持痂皮或焦痂的完整。

阅读理解

    Camp memories last forever! We make sure they are unforgettable!

     Shadow Ridge Summer Camps offer so many exciting things for campers to do.Unlike other camp

programs that include horses as a small part of their program, at Shadow Ridge horses are the program! We are 100% horse from stable (马厩) management, nature walks, and track rides to bedroom furnishings.

     Horses help us achieve many of our aims.Girls can learn to develop responsibility, selfconfidence and

personal connections in their lives while having fun.Using horses as a wonderful tool for education, our

camps offer an interesting place for growth and learning.

     Imagine each girl having her very own horse to spend time with and a best friend to love and take

care of.Each camper is responsible for a horse for the week.Our riding program provides a lot of riding

and lesson time.Campers will learn how to take care of the horse and the tack (马具), as well as how to

ride.Days are filled with horserelated activities to strengthen the connection between each girl and horse,

as the girls learn to work safely around the horses.

    At Shadow Ridge we try to create a loving, caring family atmosphere for our campers.We have "The

Bunkhouse"(4 girls), "The Wranglers Roost"(4 girls), and "The Hideout"(2 girls) in our comfortable 177

yearold farm house.All meals are home cooked, offering delicious and healthy food for the hungry rider.

    Our excellent activities create personalized memories of your child's vacation.Each child will receive a

camp Tshirt and a photo album (usually 300－500 pictures) of their stay at camp.

    Our camps are offered during June, July and August 2011, for small groups of girls aged 13－16

years, not only from Canada but also other parts of the world.

    We will send you full program descriptions at your request.

1.  What is the main purpose of the passage?

A. To attract people to the camps.

B. To talk about camping experiences.

C. To describe the programs of the camps.

D. To explain the aims of the camps.

2. What do we know about the camp programs at Shadow Ridge?

A. Campers are required to wear camp Tshirts.

B. Horses play a central role in the activities.

C. Campers learn to cook food for themselves.

D. Horse lessons are offered all the year round.

3. The programs at Shadow Ridge mainly aim to help people ________.

A. understand horses better

B. enjoy a family atmosphere

C. have fun above other things

D. achieve an educational purpose

4. Which one of the following is NOT mentioned in the passage?

A. The time of the camping.

B. The cost of the camping.

C. The advantages of the camping.

D. The effect of the camping.

5. The passage is written mainly for ________.

A. horse riders  

B. teenage girls

C. Canadian parents  

D. international travelers

错觉是（）。

A．幻觉

B．不能纠正的

C．定势

D．很难纠正的

下图为我国西部沿东经87°30′的地形剖面图，读图回答下列问题。

④代表的地形区名称是（），其内的（）河是我国最长的内流河。