首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human "guinea p
Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human "guinea p
admin
2011-07-31
74
问题
Design of all the new tools and implements is based on careful experiments with electronic instruments. First, a human "guinea pig" is tested using a regular tool. Measurements are taken of the amount Of work done, and the buildup of heat in the body. Twisted joints and stretched muscles can not perform as well, it has been found, as joints and muscles in their normal positions. The same person is then tested again, using a tool designed according to the suggestions made by Dr. Tichauer. All these tests have shown the great improvement of the new designs over the old.
One of the electronic instruments used by Dr. Tichauer, the myograph (肌动记器), makes visible through electrical signals the work done by human muscle.
Another machine measures any dangerous features of tools, thus proving information upon which to base a new design. One conclusion of tests made with this machine is that a tripod (三脚架) stepladder is more stable and safer to use than one with four legs.
This work has attracted the attention of efficiency experts and time-and-motion-study engineer, but its value goes far beyond that. Dr. Tichauer’s first thought is for the health of the tool user. With the repeated use of the same tool all day long on production lines and in other jobs, even light manual work can put a heavy stress on one small area of the body. In time, such stress can cause a disabling disease. Furthermore, muscle fatigue is a serious safety hazard.
Efficiency is the by-product of comfort, Dr. Tichauer believes, and his new designs for traditional tools have proved his point.
It can be inferred from the passage that ______ .
选项
A、a stepladder used to have four legs.
B、it is dangerous to use tools
C、a tripod is safer in a tool design
D、workers are safer on production lines
答案
C
解析
转载请注明原文地址:https://www.kaotiyun.com/show/9VlC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Theresearchshowsthatthesuccessfulpeopleare(similarinmanyways).
Theconceptofpersonalchoiceconcerninghealthisimportantbecause______.Soundpersonalhealthchoiceisoftendifficultt
RecentstudiesbytheCouncilofEuropeshowthat______.Althoughitisdifficultnowadaystoconvincethepublicoftheimpor
Thepassageimpliesthatthetelegraphcablewasbuiltmainly______.Thispassageismainlyabout______.
Astandingorderis______.Thewriter’spurposeinwritingthispassageis______.
A、troubleB、touchC、youngD、houseD
A.I’vebeeninvitedtoaparty,WhyB.Yes,butthanksanywayC.It’sverykindofyoutocometoseemeD.Whatabouttheweat
Peopledonotanalyseeveryproblemtheymeet.Sometimestheytrytoremembersolutionfromthelasttimetheyhada【21】problem.
Strongbondscanexistindatingrelationships.MycousinCandiceandherfriendLouisstarteddatingcasuallylastyear.Asthe
随机试题
“现代事务向全球的扩展和延伸,促使经理们重新考虑秘书应起的作用,以及所要委派的更多的责任和要授予的更多的执行权力。”这段话出自
美国兰德公司、麦肯锡公司的专家通过对全球优秀企业的研究,得出结论认为:世界500强得以成功的一大基石,就是这些公司有着自己鲜明的企业文化。请简述组织文化的塑造途径。
心主神志的物质基础是
扫描视野的英文简写是
关于磷酸盐包埋材料的描述正确的是
黄酮类判断有无3-OH取代,可用黄酮类判断有无4’-OH取代,可用
会计科目的设置必须完全符合统一会计制度的规定,企业不得自行增加、减少或合并。()
下列关于每股收益的说法不正确的有()。
Sinceancienttimesithasbeenknownthatyourwordisacausesetinmotion.Infact,theuniverseitselfisclaimedtohavee
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestudyofthesea".Beforethenineteenthcentury,s
最新回复
(
0
)