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
Several of the chemical elements were known in prehistoric【C1】______ . One of the great【C2】______ forward in civilization came w
Several of the chemical elements were known in prehistoric【C1】______ . One of the great【C2】______ forward in civilization came w
admin
2014-09-24
39
问题
Several of the chemical elements were known in prehistoric【C1】______ . One of the great【C2】______ forward in civilization came when bronze, an alloy,【C3】______ stone as the main material for tools and weapons. The iron replaced bronze. The first elements【C4】______ were those that were found free in nature or could be readily【C5】______ from their ores at relatively low temperatures. During the Middle Ages, chemistry was mostly practised by the alchemists,【C6】______ tried to turn base metals into gold, and who were interested in discovering a way of living for【C7】______ . But they discovered many important【C8】______ about the metals and some of the most easily attainable compounds. Even before the Middle Ages, people knew how to【C9】______ mercury, tin, and iron from their ores. By the time of Paracelsus, chemistry was developed largely to the effort of【C10】______ medicines.
【C1】
选项
A、times
B、schedules
C、plans
D、timing
答案
A
解析
times作为"时代"讲,可用复数形式。如ancient times(古代)。timing是名词,意思是"对时间的确定和选择"。schedule的意思是"计划,日程安排"。它与timeta—ble相近,另也有plan和arrangement的意思。本题应选A。
转载请注明原文地址:https://kaotiyun.com/show/zuWO777K
0
在职攻硕英语联考
相关试题推荐
Innovation.It’swhatgotusthroughtheDarkAges.Butovertheyears,insteadofmovingforward,somescientistsandinventors
Childrenlivingwithsingleparentsencountermanyproblems.Theyaremore【C1】______stressfulexperiencesthanarechildrenlivi
Humanshavetosettletheproblemswithfood,clothesand______beforetheycansurvive.
Thefirsttiponhowtoreduceyourteststressistousealittlestress______(3words).
Recentprogressinpublichealthhashelpedpeoplelivelongerandhealthierlives.Thereisabundantevidenceof【C1】______theu
Eachofusisworkinghardtobehappy.Happinessbringssubstantialbenefitsforsociety【C1】______.Thereisclearand【C2】_____
______youropinionsareworthconsidering,thecommitteefindsitunwisetoplacetoomuchimportanceonthem.
Astheschooltermends,NewYorkisnoclosertosolvingitsacuteshortageofcertifiedteachersthanitwasearlierintheye
Theprivatedetective,havingreceivednewinformationfromaconfidentialsource,narroweddownthe______ofhisenquiryintoth
Ishouldbethe______mantothinkhighlyofthosewhowakeuptopersonsofinfluence.
随机试题
毛泽东思想的活的灵魂包括哪些内容?
单位商品价值量与包含在商品中的社会必要劳动量()
显微镜下,肥厚性心肌病的主要病理表现是
按照无牙颌组织结构特点,下颌舌骨嵴属于()。
设随机变量X的二阶矩存在,则()。
场地大于1km2或重要工业区,宜建立相当于()导线精度的平面控制网。
房地产开发项目工程竣工报告的编制者是()。
教师在教学中作为促进者的角色的特性是().
下面关于计算机病毒的说法中,正确的有()。
Onenightintheearly1600sGalileogottiredofusingthenewfangled(新花样的)telescopetospotshipsandpointedittotheheav
最新回复
(
0
)