首页
登录
职称英语
At ground level, ozone is a harmful pollutant, but in the stratosphere it shield
At ground level, ozone is a harmful pollutant, but in the stratosphere it shield
游客
2024-01-13
34
管理
问题
At ground level, ozone is a harmful pollutant, but
in the stratosphere
it shields the earth from the most biologically harmful radiation emitted by the Sun, radiation in the ultraviolet band of the spectrum.
选项
A、in the stratosphere
B、in the stratosphere, in which
C、it is in the stratosphere in which
D、in the stratosphere where
E、it is in the stratosphere and
答案
A
解析
由but表明前后是转折关系,即存在着对比。but之前的地点状语是at ground level,因而but之后用in the stratosphere,无论从结构上还是形式上均与at ground level对称。选A是正确的,B、D使but分句的句子结构不完整。E改变句意,而C与but之前的形式缺乏对应关系,表达啰嗦。
转载请注明原文地址:https://tihaiku.com/zcyy/3357934.html
相关试题推荐
Amusementridesatpermanentfairgroundsaredismantledonceayearforsafetyi
Pollutantsintheatmospherecancauseacidrain(rainwithhighaciditylevels).
Theefficiencyofmicrowaveovensindestroyingtheharmfulbacteriafrequently
Theiceonthefrontwindshieldofthecarhadformedwhenmoisturecondenseddu
Atgroundlevel,ozoneisaharmfulpollutant,butinthestratosphereitshield
LastspringaColoradohealthdepartmentsurveyof72playgroundsinprivatechi
Imagesfromground-basedtelescopesareinvariablydistortedbytheEarth’satmo
Ozoneinthestratosphereblocksdeadlyultravioletraysfromthesun,butchlor
Giventhat8percentoffoodcropsgrowsfasteronfarmsusinggroundwa
Teacherswhoconsidercartoonsandcomicbooksharmfultostudents’literacyski
随机试题
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
患者男,26岁。一周来发热,伴肌肉痛及胸痛,查体可闻及心包摩擦音,心电图:Ⅱ、Ⅲ
远程主机使用的应用层协议为A.Telnet B.SNMP C.FTP D
图像未发现扫描层面外病灶,原因是A.矩阵大 B.无层面外结构干扰 C.灰阶范
不是活动矫治器优点的为A.易于清洁 B.结构简单 C.不易造成牙体操作 D
抵押权与其担保的债权同时存在,债权消失,抵押权也消失。()
基本建设投资的综合范围为总投资( )万元(含)以上的基本建设项目。A.30
A.高热、出血、肾损害 B.高热、惊厥、休克、呼吸衰竭 C.心悸、气促、相对
相须配伍产生的作用是A.减轻或消除毒性B.拮抗作用,降低疗效C.协同作用,增强疗
便秘的主要证型有A.气滞郁结 B.热结肠胃 C.津亏肠燥 D.阳虚寒凝
最新回复
(
0
)