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
46
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
NativeAmericanpottersoften(i)______theshortcutsofferedbymoderntechnolog
______toparticipateinthefestivities.A、NoeverystudentwantsB、Noeverystud
混凝土合理砂率随()而变化,需要根据实际施工条件,通过试验来选择。A.粗集料种类
为防止积液出现下列症状,标本留取后应及时送检,但哪项除外A.凝块 B.细胞变性
Thechangeinthatvillagewasmiraculou
利用文丘里管喉部的负压抽取基坑中的积水,如图所示,若喉部流速v1=10m/s,
()可用来测量受训者对培训项目的态度、动机以及行为等方面的特征。A.绩效成果
对眩晕病因病机率先提出“无虚不能作眩”观点的医著是( ) A.《素问.玄机原
2019年2月3日,甲公司以银行存款2003万元(其中包含相关交
下列哪项不符合霍乱患者泻吐期的临床特点A.多数腹泻伴有里急后重 B.多数以剧烈
最新回复
(
0
)