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
外语
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slow
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slow
admin
2016-04-03
25
问题
Chemistry did not emerge as a science until after the scientific revolution in the seventeenth century and then only rather slowly and laboriously. But chemical knowledge is as old as history, being almost entirely【B1】______ the practical arts of living. Cooking is 【B2】______ a chemical process: so is the melting of metals and the administration of drugs and poisons. This basic chemical knowledge, which was applied in most cases as a rule of thumb, was nevertheless【B3】______ previous experiment. It also served to 【B4】______ a fundamental curiosity about the processes themselves. New information was always being gained as artisans(工匠)improved techniques to gain better results. The development of a scientific approach to chemistry was, however,【B5】______ by several factors. The most serious problem was the vast range of material available and the 【B6】______ difficulty of organizing it into some system. In addition, there were social and intellectual difficulties: chemistry is nothing if not practical: those who practice it must use their hands, they must have a certain practical talent. Yet in many ancient【B7】______, practical tasks were primarily the province of a slave population. The thinker or philosopher【B8】______ this earthly world, where the practical arts appeared to lack any intellectual content or interest. The final problem for early chemical science was the element of secrecy. Experts in【B9】______ trades had developed their own techniques and guarded their knowledge to prevent others from stealing their【B10】______.
【B1】
选项
答案
concerned with
解析
concerned with意为“与……有关的”,注意空格前有being,故concern词尾要加-ed。
转载请注明原文地址:https://kaotiyun.com/show/nKL7777K
0
大学英语六级
相关试题推荐
Whetherit’scurledupinthefetalposition,flatonthestomachorstretchedoutacrossthebed,thewaypeoplesleep【C1】_____
Ifyouexhibitpositivetraitssuchashonestyandhelpfulness,thechancesarethatyouwillbeperceivedasagoodlookingper
Ifyouexhibitpositivetraitssuchashonestyandhelpfulness,thechancesarethatyouwillbeperceivedasagoodlookingper
GrayingPopulationStaysinthePinkA)Elderlypeoplearegrowinghealthier,happierandmoreindependent,sayAmericanscientis
StartupNuclearEnergyCompaniesAugurSafer,CheaperAtomicPowerA)Nothingcaptureshowfashionablethestartuphasbecomequi
PatientsStruckoffbyGPsA)ThousandsofpatientsarebeingarbitrarilystruckoffbyGPs(普通开业医生)whosaytheycannolongercop
You’vebeenworkingoutregularlyforquiteawhile,butyou’renowherenearyourfitnessgoals.Sonowit’stimetobringin
Breedinginmostorganismsoccursduringapartoftheyearonly,andsoareliablecueisneededtotriggerbreedingbehaviour.
Internationalgovernments’inactionconcerningsustainabledevelopmentisclearlyworryingbuttheproactive(主动出击的)approachesof
Internationalgovernments’inactionconcerningsustainabledevelopmentisclearlyworryingbuttheproactive(主动出击的)approachesof
随机试题
哪项不是蜜炙的目的()
[2005年第106题]下列有关城市设计的概念中哪项不正确?
要约是希望( )的意思表示。
资产负债表反映企业一定期间的账务状况。()
保税物流园区运往区外检测、维修的机器、设备和办公用品等不得留在区外使用,并应自运出之日起______内运进区内。
下图为农业废弃物资源化循环发展理论框架示意图。图中“三环”表示可持续发展三要素的循环发展。读图完成14—15题。四川盆地地区被誉为“天府之国”,支持此美誉的原因有()。①冬冷夏热温差大②气候湿润多降水③河流众多水源足④热量充足土壤肥沃
Howmanytimedoyouspendwithyourparents?【M1】______Yourparentsareyourdearerpeopleintheworld【M2】______whenyouare
Salesofexistinghomesrosebythelargestamountinmorethan5yearsinSeptember.Butanalystscautionedagainstreadingtoo
阅读以下说明和关系表,回答问题1~3。[说明]假设现某家庭有存款余额是500元,1.妈妈存进了200元,2.爸爸又存进了300元,其执行的时间如下:
Nooneknowsexactlyhowmany【C1】______peoplethereareintheworld,butestimates【C2】______thefigureisover【C3】______.Then
最新回复
(
0
)