首页
登录
职称英语
Chemistry did not emerge as a science until after the scientific revolution
Chemistry did not emerge as a science until after the scientific revolution
游客
2023-08-19
50
管理
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】______. [br] 【B10】
选项
答案
livelihood
解析
空格位于物主代词their之后,可知此处应填入名词,livelihood意为“生计,谋生”。
转载请注明原文地址:http://tihaiku.com/zcyy/2939333.html
相关试题推荐
Whatisthemoststrikingimagetoemergefromthisautumn’sOccupyprotest
Whatisthemoststrikingimagetoemergefromthisautumn’sOccupyprotest
Itisfrequentlyassumedthatthemechanizationofworkhasarevolutionary
Anumberofscientificstudieshavefoundthattheamountofsugarweconsum
Anumberofscientificstudieshavefoundthattheamountofsugarweconsum
Anumberofscientificstudieshavefoundthattheamountofsugarweconsum
AccompanyingIndia’sindustrialtransformationhasbeenanotherrevolutiono
AccompanyingIndia’sindustrialtransformationhasbeenanotherrevolutiono
AccompanyingIndia’sindustrialtransformationhasbeenanotherrevolutiono
AccompanyingIndia’sindustrialtransformationhasbeenanotherrevolutiono
随机试题
Whatdotheythinkadoctorshouldbe?[br][originaltext]F:Ithinkadoctors
Withthepossibleexceptionofequalrights,perhapsthemostcontroversial
"MadeinChina"lostitsnoveltylongago.Thelabelhasbecome【C1】______in
[originaltext]W:Excuseme,sir.I’mnewhere.Couldyoushowmehowtomakea
IVF-ET的常见并发症有,,
信贷资金的运动特征有()。 A.信贷资金运动以银行为轴心B.产生经济效益才
A.病例对照研究 B.队列研究 C.临床试验研究 D.理论流行病学研究
男,40岁,10小时前搬重物时突发上胸部疼痛,呈撕裂样,并逐渐向下胸部和腹部延伸
某化工集团欲投资建设工厂,委托某机构进行安全评价。该机构在对项目的评价过程中,发
下列项目中应通过“营业外收入”科目核算的有()。A.无法支付的应付账款 B.
最新回复
(
0
)