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
A. reactive B. lightest C. important D. complete E. flammable F. unnecessary Among the elements of noble gases Helium is the___
A. reactive B. lightest C. important D. complete E. flammable F. unnecessary Among the elements of noble gases Helium is the___
admin
2012-12-28
39
问题
A. reactive
B. lightest
C. important
D. complete
E. flammable
F. unnecessary
Among the elements of noble gases Helium is the______.
选项
答案
B
解析
句意:惰性气体中的氮气 。根据第三段最后一句话可知,氦气是最轻的。故选B。
转载请注明原文地址:https://jikaoti.com/ti/C3JsFFFM
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
TryingtoFindaPartnerOneofthemoststrikingfindingsofarecentpollintheUKisthatofthepeopleinterviewed,one
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
AforyoungerandolderpeopleBtotheproperfunctionofyourmemoryCiscalledlong-termmemoryDthecapacitytostorewhat
ProlongingHumanLife1Prolonginghumanlifehasincreasedthesizeofthehumanpopulation.Manypeoplealivetodaywouldhave
LivingAloneCouldBeGoodforYourWeightGoodnewsforpeoplelivingalone:Aforthcomingpapershowsthatsingleadults—o
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Allinstructorswilla
Theauthoriskindtothechildrenbecauseshewantedtoplayanimportantroleinthechildren’slives.Whenitsnowed,theki
随机试题
根据抽油机井测试资料,可以分析判断抽油机井工作制度是否合理,找出影响()的原因。
二战之后,得到广泛接纳和强化的观念是教育的发展要依靠
人们在公共的领域、公有的环境、公用的场所中,彼此开放透明且相互关联的共同活动,被称为
ThedistinctivearchitecturalfeatureofthetypicalBroadwaytheateristhejuxtaposition(毗邻)oftwoalmostindependentbuilding
A.蚊传播B.硬蜱传播C.蝇传播D.蚤传播E.虱传播流行性乙型脑炎
患者,男,70岁。家属代诉:患者近晨起床后半小时,突然昏仆,不省人事,目合口张,遗溺,手撒,四肢厥冷,脉细弱。治疗用隔盐灸,应首选
持有外交签证或礼遇签证的人员,可选择()通关。
关于项目及项目中文件的叙述,不正确的是()。
Theclimate(气候)isveryspecialinEngland.Thereisnotagreat【B1】betweensummerandwinter.Besides,it【B2】alotinEngland
______,watershouldberegardedwithcautionasitcanbedangerous.
最新回复
(
0
)