下列原理中不能用于速度测量的是( )。A．动压法 B．散热率法 C．激光多普勒效应

阅读理解。

     Since the 1970s, scientists have been searching for ways to link the brain with computers.

Brain-computer interface (界面) (BCI) technology could help people with disabilities send commands

to machines.

     Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic school in

Lausanne, Switzerland, demonstrated (展示)a small robotic wheelchair directed by a person's thoughts.

     In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand.

He could even talk as he watched the vehicle and guided it with his thoughts.

     "Our brain has billions of nerve cells. These send signals through the spinal cord (脊髓) to the muscles

to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles," Tavella says.  "Our system allows disabled people to communicate

with external world and also to control devices."

     The researchers designed a special cap for the user. This head cover picks up the signals from the

scalp (头皮) and sends them to a computer. The computer interprets the signals and commands the

motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help

the computer react to commands from the brain.

     Prof. Milan, the team leader, says scientists keep improving the computer software that interprets

brain signals and turns them into simple commands. "The practical possibilities that BCI technology offers

to disabled people can be grouped in two categories: communication, and controlling devices. One

example is this wheelchair."

     He says his team has set two goals. One is testing with real patients, so as to prove that this is a

technology they can benefit from. And the other is to guarantee that they can use the technology over

long periods of time.

1. BCI is a technology that can _______.

A. help to update computer systems      

B. link the human brain with computers

C. help the disabled to recover          

D. control a person's thoughts

2. How" did Tavella operate the wheelchair in the laboratory?

A. By controlling his muscles.            

B. By talking to the machine.

C. By moving his hand.                  

D. By using his mind.

3. Which of the following shows the path of the signals described in Paragraph 5?

A. scalp→computer→cap→wheelchair

B. computer→cap→scalp→wheelchair

C. scalp→cap→computer→wheelchair

D. cap→computer→scalp→wheelchair

4. The team will test with real patients to _____.

A. make profits from them          

B. prove the technology useful to them

C. make them live longer           

D. learn about their physical condition

5. Which of the following would be the best title for the text?

A. Switzerland, the BCI Research Center

B. New Findings About How the Human Brain Works

C. BCI Could Mean More Freedom for the Disabled

D. Robotic Vehicles Could Help to Cure Brain Injuries

白肋烟脚叶在中部5级以下定级，顶叶在（）以下定级。

山东省行政区域内的（）（）和（）等工作，适用本条例。

《1941年美国对外贸易定义修订本》的主要使用范围是在（）

A、全球

B、亚洲

C、北美洲

D、欧洲

读下面文字，完成下列问题
宋代学者称杜甫为“圣于诗者”，这主要是指杜甫在诗歌史上地位而言。他们把杜甫视为“集大成”者，认为他是位无体不工、无美不备的诗人。到了后世把杜甫称为“诗圣”，这突出了杜诗的道德含义(郭沫若称其为“诗中圣哲”也是此意)，符合杜诗中的儒学内涵。
“诗圣”的名号，使得杜诗所确立的“忧国忧民”思想逐渐成为了主流理论。不管你是否赞成，但都不能不承认诗歌写作应该反映现实和关注国家与人民命运。南宋诗人就说：“忧时本是诗人职，莫怪吟中感慨多。”这是赞成诗人应该忧国忧民的。也有不赞成的，明代的公安派代表作家袁宏道，提倡个性解放，不同意诗人应有“忧国忧民”的责任感。他在《显灵宫集诸公以麻城山林为韵》中说“新诗日日千余言，诗中无一忧民字”，“自从老杜得诗名，忧国爱民成儿戏”，仔细咀嚼诗意，可见袁氏虽然不赞成此说，但还是把“忧国忧民”看作当时诗歌创作中大多数人所遵循的原则。这些都说明对后世人士影响之深。
诗歌创作乃是中国古代读书人日常功课之一，古代学子平常接触最多当属杜诗。因为杜诗中规矩井然，所以，如应酬中大量运用的律体诗，当以杜甫写得最好，很少率意之作；科举考试中用的试帖诗可以模仿杜集中的“五排”(杜甫以后，很少再有人写出像杜甫这样多的高质量的“五排”了)。对杜诗的广泛的模仿从宋代就开始了。书商为了满足这个社会需求，还把杜诗分类编排，给模仿者以便利。这样，杜诗中的思想感情必然会从阅读的渠道渗入到士人们的思想意识中去。因此，杜诗中对后世文人士大夫性格的塑造产生影响绝不是夸诞之词。
中国的文学传统，特别是古典诗词对读者思想感情的陶冶力量是很难估量的。杜甫诗发扬了儒家思想中富于伦理价值的思想，对古代读书人有很大影响；施之于今日的教育之中，也当有积极的意义。

对文章第二段的分析、理解不正确的一项是：

A．从“新诗日日千余言，诗中无一忧民字”中可以看出袁宏道不同意诗人应有“忧国忧民”的责任感。

B．南宋诗人大多数在诗歌创作中仍遵循“忧国忧民”是诗人职分的原则。

C．“自从老杜得诗名，忧国忧民成儿戏”这句诗表明袁宏道认为杜甫以后诗歌多为儿戏之作。

D．明代大多数诗人在诗歌创作中仍遵循“忧国忧民”的原则，袁宏道认为这也是事实。