书屋的基本服务主要包括哪些?

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问题:

书屋的基本服务主要包括哪些?

考点:农家书屋图书管理员知识竞赛农家书屋图书管理员知识竞赛题库
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当电梯运行超过顶层或底层平层位置仍不能停车,继续向上或向下运行,在井道中设有(),以防电梯冲顶或墩底造成事故。

A、供电系统断相、错相保护装置

B、超越上、下极限工作位置的保护装置

C、层门锁与轿门电气联锁装置

D、慢速移动轿厢装置

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一个长、宽、高分别为6米,3米,5米的水池,它的占地面积是______平方米.

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毛果芸香碱的缩瞳机理是:

A.阻断瞳孔括约肌的M受体,使其松弛

B.阻断瞳孔扩大肌的α受体,使其收缩

C.激动撞孔扩大肌的α受体,使其收缩

D.阻断瞳孔括约肌的M受体,使其收缩

E.激动瞳孔括约肌的M受体,使其收缩

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阅读理解。

     I believe that animals possess greater intelligence than most people think But plants? I've never considered

the possibility of plant intelligence. The idea seems absurd.

     Yet I've had friends argue that plant intelligence might exist. "What are the differences between plants and

animals?" they ask, and then they argue about certain species that seem to share the intelligence of both plants

and animals.

     New research suggests that plants communicate via "networks". Plant communication is not idea, and

cannot indicate that it is a kind of intelligence, but it is still interesting.

     Recent research from Vidi researcher Josef Stuefer at the Radboud University Nijmegen shows that plants

have their own chat systems that they can use to warn each other. Therefore plants are not boring and passive

organisms that just stand there waiting to be cut down or eaten up; many plants form internal communication

networks and are able to exchange information networks and are able to exchange information efficiently.

     Many herbal plants such as strawberries and clovers (三叶草) naturally form networks. Individual plants

remam connected with each other for a certain period of time by means of runners (plant stems that grow

along the ground and put down roots to form new plants). These connections enable the plants to share

information with each other via intemal channels. They are therefore very similar to computer networks. But

what do plants chat to each other about?

     Recently Stuefer and his colleagues were the first to prove that clover plants warn each other via the

network links if danger is nearby. If one of the plants is attacked by caterpillars (毛虫), the other members of

the network are warned via an internal signal. Once warned the intact (完好无损的) plants strengthen their

chemical and mechanical (机体的) resistance so that they are less attractive to advancing caterpillars. Thanks

to this early warning system, the plants can stay one step ahead of their attackers. The research has shown that

this significantly limits the damage to the plants.

     Again, I don't believe this reflects intelligence, but it's certainly fascinating.

1. The author thinks that the plant communication _____. [ ]

A. is absolutely a new idea 

B. is a sign of plant intelligence

C. is related to animal communication

D. is interesting and fascinating

2. Clover plants warn each other when danger is nearby by _____. [ ]

A. making sounds

B. releasing chemicals

C. strengthening mechanical resistance

D. sending internal signals

3. Which of the following statements about the research is NOT true? [ ]

A. Most plants have no chat system and are passive organisms.

B. Individual plants can also remain connected with each other.

C. The communication between clover plants can protect them from damage.

D. The research is the first to show how clover plants warn each other.

4. The author's attitude towards plant intelligence is _____. [ ]

A. unconcerned

B. doubtful

C. positive

D. hopeful

5. What's the best title for the passage? [ ]

A. Does Plant Communication Really Exist?

B. Some Discoveries About Clover Plant.

C. Does Plant Communication Imply Intelligence?

D. A New Study on Plant Communication.

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电动差压变法器输出开路影响的检定,应在输入量程()的压力信号下进行。

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