会计从业资格管理的内容包括( ) A．上岗登记注册 B．离岗备案 C．调转登记 D

下述哪种情况下，不出现脊柱圆弧形后凸（）。

A.类风湿性脊柱炎

B.青年性驼背

C.佝偻病

D.姿势性驼背

E.脊柱结核

温度传感器是应用最广泛的传感器之一，一般由半导体材料的热敏电阻制成，它可以把热信号转换为电信号，进行自动控制，电饭锅、电饭煲的自动加热和保温就是借助于温度传感器来完成的。电饭锅中应用了温度传感器，它的主要元件是感温铁氧体，感温铁氧体是用氧化锰、氧化锌和氧化铁粉末混合烧结而成的，它的特点是：常温下具有铁磁性，能够被磁体吸引，但是上升到约103℃时，就失去了铁磁性，不能被磁体吸引了，这个温度在物理学中称为该材料的“居里温度”或“居里点”。电饭锅的结构如图所示，试回答以下问题：

（1）开始煮饭时为什么要压下开关按钮？手松开后这个按钮是否会恢复到图示的状态？为什么？

（2）煮饭时水沸腾后锅内是否会大致保持一定的温度？为什么？

（3）饭熟后，水分被大米吸收，锅底的温度会有什么变化？这时电饭锅会自动地发生哪些动作？

（4）如果用电饭锅烧水，能否在水沸腾后自动断电？

阅读理解。

                                              Special Bridges Help Animals Cross the Road 

                                                            --Reported by Sheila Carrick

     Why did the chicken cross the road? To get to the other side.

     Most people know this joke. But recently, some people have been much more worried about how the

grizzly bear and mountain lion can cross the road.

     "Millions of animals die each year on U.S. roads," the Federal Highway Administration reports. In fact,

only about 80 ocelots, an endangered wild cat, exist in the U.S. today. The main reason? Roadkill.

     "Ecopassages" may help animals cross the road without being hit by cars. They are paths both over and

under roads. "These ecopassages can be extremely useful, so that wildlife can avoid road accidents," said

Jodi Hilty of the Wildlife Protection Society.

     But do animals actually use the ecopassages? The answer is yes. Paul Beier of Northern Arizona

University found foot marks left by mountain lions on an ecopassage that went under a highway. This showed

that the lions used the passage.

     Builders of ecopassages try to make them look like a natural part of an area by planting trees on and around

them. Animals seem to be catching on. Animals as different as salamanders and grizzly bears are using the

bridges and underpasses.

     The next time you visit a park or drive through an area with a lot of wildlife, look around. You might see an

animals overpass!

1. The writer uses the example of "ocelots" to show that ______.

A. wild animals have become more dangerous

B. the driving conditions have improved greatly

C. an increasing number of animals are killed in road accidents animals on ecopassages

D. the measure for protecting wildlife fails to work

2. From the news story, we know an ecopassage is ______.

A. an underground path for cars

B. a fence built for the safety of the area

C. a bridge for animals to get over a river

D. a pass for animals to cross the road

3. When the writer says that animals seem "to be catching on", he means ______.

A. animals begin to realize the dangers on the road

B. animals are crossing the road in groups

C. animals are increasing in number

D. animals begin to learn to use ecopassages

4. The best title for the passage is _______.

A. Special bridges help animals cross the road

B. Endangered animals increase because of roadkill

C. Animals fail to cross the road

D. Take steps to protect animals in danger

（2012•怀化）人类可以通过化学反应获得能量，如利用沼气燃烧可以煮饭、炒菜等．请你举出两例利用化学反应获得能量的事例．

原存款行对已到期的定期储蓄存款托收，利息计算至（）。

A、存单到期日

B、存单到期日前一天

C、存款划出日前一天

D、存款划出日