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
58
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.
【C7】
选项
A、ever
B、long
C、length
D、sure
答案
A
解析
A项ever与for搭配,表示"永远",其意与上下文相吻合。其他几个词不能表达"永远"的意思。
转载请注明原文地址:https://kaotiyun.com/show/ZwWO777K
0
在职攻硕英语联考
相关试题推荐
ThebookLoveandItsPlaceinNatureobservedthatwithoutlovechildrentendtodie.AndAshleyMontagunotedBritish-bornChi
Forthispart,youareallowed30minutestowriteacompositionofnolessthan150wordsunderthetitleof"WhyIGotoGradu
Evenduringthehorseandcarriagedays,trafficinbigcitieswasoftenheavy.Policeofficershadtobestationedfulltimedi
Thisdriverwasexperiencedenoughtopreventwhat________mighthavebeenaterribleaccident.
Yoursalarybarelycoverschildcare,butyourcoworkersgiveyouside-eyewhenyouleaveatfive.Evenifyou’reluckyenoughto
Eachofusisworkinghardtobehappy.Happinessbringssubstantialbenefitsforsociety【C1】______.Thereisclearand【C2】_____
Collegesmightgainmuchmoreinformationaboutthelikelysuccessofundergraduateapplicantstoscience,technology,engineeri
Consumer______infoodproductshasbeenshakenbyseveralrecentscandals.
Inmanystatesthisyear,budgetrequestsbystateuniversitieshavehadtobescaledbackorfrozen,whiletuition,theshareo
MembersofthepartyallappreciateJackson’swantingtohelpthem______theirdifficulties.
随机试题
A.乳果糖B.生长抑素C.柳氮磺胺吡啶D.左旋多巴E.利福平主要用于治疗溃疡性结肠炎的药物是
试述中国红色政权存在和发展的原因和条件。
地下水水质现状监测项目的选择,应根据建设项目()而确定。
氧气管道的吹扫可以采用()或氮气进行吹扫。
某中美合资企业需到注册地海关办理报关登记证书换证手续,应向海关递交的文件资料包括()。
企业筹资的基本原则有( )。
20世纪60年代“反精神病学”的代表人物是()。
调查研究法可分为确定课题和搜集资料。()
在考生文件夹下的“samp1.accdb”数据库文件中已建立表对象“tEmp”。请按以下操作要求,完成对表“tEmp”的编辑修改和操作。设置“年龄”字段的有效性规则为不能是空值。
AccordingtothenewWHOandSavetheChildren’sreport,
最新回复
(
0
)