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
What do we find after the development of the laser in the 1960s? The reason why the laser beam is very strong is that
What do we find after the development of the laser in the 1960s? The reason why the laser beam is very strong is that
admin
2011-01-14
34
问题
What do we find after the development of the laser in the 1960s?
The reason why the laser beam is very strong is that
选项
A、it is artificially illuminated
B、it is made up of a concentrated beam of light
C、it sends out heat in all directions
D、its heat is increased by the heat of the sun
答案
B
解析
细节题。题干的意思是“为什么激光束的能量比较强?”根据原文第二段最后一句可知“能量被集中到一起而变得强大。”故答案为B。
转载请注明原文地址:https://kaotiyun.com/show/Xx5d777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Youshouldbe______whenyoulookaftertheoldpeople.
Thereasonwhymanyproductionprocessesweretakenoverbythemarketplacewasthat____________.Itcanbeseenfromthepassa
Fromthispassage,welearnthataspirinisusuallyusedtotreat_______.Atlasttheresearcherswarnusto_______.
Inthejungleyoumaygethopelesslyhostwithintenminutesafterstarting.Thatis【B1】youshouldalwayscarryacompass(指南针)
Ifyoudon’tknowhowtouseacomputer,youhadbetteraskforthepositionof______.Asagraduatefromuniversitythisyear,
Studyingcarefullythecluesinthepassage,welearnthatthetotalpopulationofAfricais______.Aworldplanmentionedin
WhyareAmericanbillsorpapermoneyunlikethatinmanyothercountries?
WhenAdamsservedasthesixthU.S.President,____________.Infact,AmericanpeoplecametoloveAdams____________.
PeoplewhoflywithBelAir______.ItfliesaeroplanestotownsandcitiesinAsia______.
A、observationB、curiosityC、encouragementD、considerationC根据文章第二段的内容我们可知,作者认为生活就是这样到处有两难境地,所以一次消极的选择未必不是好事,他应该是一个很乐观的人。所以正确的答案为
随机试题
HT公司是一家家用电器生产企业,全部产品均使用HT品牌进行销售,该公司采用的品牌名称策略是()
下列关于Word文档分栏叙述正确的是
男童,7个月。体重5kg,母乳喂养,未加辅食。最严重的并发症是
下面不能用来治疗子宫肌瘤的物有
A.支气管哮喘B.支气管肺癌C.支气管扩张D.阻塞性肺气肿E.肺结核骨、关节病变或内分泌紊乱等常见于
下列哪项不属于疫源地消灭的条件之一
在饮用水的预处理加常规定处理工艺中,预处理可以采用()。①颗粒活性炭②生物处理③粉末活性炭④膜分离
设随机变量X的概率密度为f(x),则下列函数中一定可以作为概率密度的是
以下关于电子邮件的说法,不正确的是()。
Completethesummarybelow.ChooseNOMORETHANTWOWORDSfromthePassageforeachanswerWriteyouranswersinboxes19-23on
最新回复
(
0
)