IMF means International ( ) Fund.A．Moist

试述对学生进行心理健康教育的措施。

一个完整的生态系统由下列哪项组成（　　）

A．非生物成分和生物成分

B．水、阳光、温度

C．生产者、消费者、分解者

D．食物链和食物网

关于架，以下说法错误的是（）

A.铰链式架只能绕铰链轴旋转作上下开闭运动

B.平均值架可近似模拟前伸和侧方咬合接触滑动运动（前伸髁导25°，侧方髁导15°）

C.半可调架髁导和切导斜度均可调，可模拟迅即侧移等下颌运动特征

D.全可调架可利用运动面弓将患者下颌三维运动特征转移至架

E.HanauH型架属于半可调架

阅读理解。

     Cold weather can hard on pets, just like it can be hard on people. Sometimes owners forget that their

cats are just as used to the warm shelter (住所) as they are. Some owners will leave their animals outside

for a long period of time, thinking that all animals are used to living outdoors. This can put their pets in danger of serious illness. There are things you can do to keep your animal warm and safe.

     Keep your pets inside as much as you can when the weather is bad. If you have to take them out, stay outside with them. When you're cold enough to go inside, they probably are too. I you must leave them

outside for a long time, make sure they have a warm, solid shelter against the wind, thick bedding, and

plenty of non-frozen water.

     If left alone outside, dogs and cats can be very smart in their search for warm shelter. They can dig

into snow banks or hide somewhere. Watch them closely when they are left outdoors, and provide them

with shelter of good quality. Keep an eye on your pet's water. Sometimes owners don't realize that a

water bowl has frozen and their pet can't get anything to drink. Animals that don't have clean and

unfrozen water may drink dirty water outside, which may contain something unhealthy for them.

1. What do we learn about pets from Paragraph 1?

A. They are often forgotten by their owners.

B. They are used to living outdoors.

C. They build their won shelter.

D. They like to stay in warm places.

2. Why are pet owners asked to stay with their pets when they are out in cold weather?

A. To know when to bring them inside.

B. To keep them from eating bad food.

C. To help them find shelters.

D. To keep them company.

3. If pets are left on their own outdoors in cold weather, they may ___.

A. run short of clean water

B. dig deep holes for fun

C. dirty the snow nearby

D. get lost in the wild

4. What is the purpose of this text?

A. To solve a problem.

B. To give practical advice.

C. To tell an interesting story.

D. To present a research result.

燃气轮机既吸取了内燃机的“内燃”的特点又吸取了蒸汽轮机（）的特点，而又同时克服了它们各自的缺点，即不存在内燃机的往复运动，也不需要一个较庞大的锅炉设备。

A、高速旋转叶轮

B、效率高

C、结构简单

D、体积小