问题 问答题 简答题

测谎仪如何进行测谎它有什么价值和不足?

答案

参考答案:

又称多导仪,通过询问有关的问题,并记录和分析被测验试者在此过程中皮电、脑电位、呼吸、血流量和心率等生理参量的变化模式,从而判断其诚实或撒谎的可能性。测谎的准确性为70-90%,同法庭上传统的司法争辩、观察、讨论等方式相比,测谎技术准确性高,快捷、经济。在刑事侦察方面,测谎仪更是能指点迷津,确立工作的重点和努力方向。

弱点有:

(1)有些人能够成功地战胜现代测谎技术

(2)经验不足的操作者往往达不到70%以上的测谎准确性

(3)即使有90%的正确率,毕竟还有10%的失误率,法庭很难接受这一事实

单项选择题

Although there are many skillful Braille readers, thousands of other blind people find it difficult to learn that system. They are thereby shut (1) from the world of books and newspapers, having to (2) on friends to read aloud to them.

A young scientist named Raymond Kurzweil has now designed a computer which is a major (3) in providing aid to the (4) .His machine, Cyclops, has a camera that (5) any page, interprets the print into sounds, and then delivers them orally in a robot-like (6) through a speaker. By pressing the appropriate buttons (7) Cyclops’s keyboard, a blind person can "read" any (8) document in the English language.

This remarkable invention represents a tremendous (9) forward in the education of the handicapped. At present, Cyclops costs $ 50,000. (10) , Mr. Kurzweil and his associates are preparing a smaller (11) improved version that will sell (12) less than half that price. Within a few years, Kurzweil (13) the price range will be low enough for every school and library to (14) one. Michael Hingson, Director of the National Federation for the Blind, hopes that (15) will be able to buy home (16) of Cyclops for the price of a good television set.

Mr. Hingson’s organization purchased five machines and is now testing them in Maryland, Colorado, Iowa, California, and New York. Blind people have been (17) in those tests, making lots of (18) suggestions to the engineers who helped to produce Cyclops.

"This is the first time that blind people have ever done individual studies (19) a product was put on the market," Hingson said. "Most manufacturers believed that having the blind help the blind was like telling disabled people to teach other disabled people. In that (20) , the manufacturers have been the blind ones.

1()

A.up

B.down

C.in

D.off

单项选择题