首页
登录
职称英语
[img]2022m1s/ct_ve01004001z2021j_eyyjsad_0192_220106[/img] [br] [originaltext]
[img]2022m1s/ct_ve01004001z2021j_eyyjsad_0192_220106[/img] [br] [originaltext]
游客
2023-10-12
44
管理
问题
[br]
The scalpel is one of the oldest inventions in medicine. It is a small, light and very sharp knife. People used it for the first time around 3000 BC in the area of modern Iraq. The scalpel did not change very much for 4,000 years.
The Chinese invented acupuncture needles around 2000 BC. At first, they did not make needles from metal, but from stone. Today, people in China and other countries use acupuncture for many illnesses.
People in southern Italy invented the first false teeth in about 700 BC. They used pieces of bone, or sometimes second-hand human teeth! After that, false teeth did not change for the next 2,500 years until, in 1770, a Frenchman called Alexis Duchateau first used porcelain—a hard, white material that we still sometimes use today.
Zacharias Jansen from Holland made the first microscope in about 1590. Through it, objects appeared nine times bigger than their real size, but it did not give a very clear picture. Jansen did not use his invention very much because people at that time did not want to look at small things!
选项
答案
2000
解析
根据原文可知,中国人大约在公元前2000年发明了针灸针。因此,填入2000。
转载请注明原文地址:https://tihaiku.com/zcyy/3091354.html
相关试题推荐
Whydidshechoosepsychology?[originaltext]M:Well,Iseefromyourresume,Mi
WhatkindofprogramisDoctorLevydescribing?[br][originaltext]W:DoctorLe
WhatisAnthonyHorowitzfamousfor?[br][originaltext]ThecharacterofSherlo
WhatisAnthonyHorowitzfamousfor?[br][originaltext]ThecharacterofSherlo
WhatisAnthonyHorowitzfamousfor?[br][originaltext]ThecharacterofSherlo
WhatisAnthonyHorowitzfamousfor?[originaltext]ThecharacterofSherlockHol
Thewomangettheadvertisementfromtheradio.[br][originaltext]M:Well,how
Thewomangettheadvertisementfromtheradio.[br][originaltext]M:Well,how
Thewomangettheadvertisementfromtheradio.[br][originaltext]M:Well,how
Thewomangettheadvertisementfromtheradio.[br][originaltext]M:Well,how
随机试题
Becauseofsatellitelinkswhichnowenablebroadcastnewsorganizationsto
Cultureisactivityofthought,andreceptivenesstobeautyandhumanefeeli
著作权贸易中会直接影响出版单位声誉的重要环节是( )。A.著作权贸易信息的获取
微处理器按其字长可以分为A.4位、8位、16位 B.8位、16位、32位、64
鼻咽部淋巴引流至:()A.耳后淋巴结 B.颌下淋巴结 C.颏下淋巴结
提出“试误说”学习理论的心理学家是()。A.斯金纳 B.桑代克 C.巴甫洛夫
A.茯苓 B.猪苓 C.泽泻 D.薏苡仁 E.滑石具有利水渗湿、泄热功效
对生育影响较为重要的异常精子形态为A.双头 B.双尾 C.无尾 D.体部肿
共用题干 MotherNatureShowsHerStrengthTo
他汀类血脂调节药的不良反应可导致下列哪项升高A.血清总蛋白 B.血清肌酐 C
最新回复
(
0
)