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
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are pa
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are pa
admin
2011-01-11
49
问题
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too.
The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding.
Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them.
Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation.
To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack.
All the following names are used to describe the organism EXCEPT ______.
选项
A、dinoflagellate
B、Pfiesteria piscimorte
C、killer algae
D、a science fiction
答案
D
解析
是非题型选项A,B都在第二段第一句中提及,选项C在第一段第一句中提到,三者指的都是 microscopic organisms;而选项D是第一段第一句就否定了的;因此D为答案。
转载请注明原文地址:https://kaotiyun.com/show/5JgO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Thosewhofightagainstalcoholsalessaytheextrataxcomesatacost.LeeMiller,aleaderofAngelinaCitizensforaBetter
Althoughmuchoftoday’scommunicationandcorrespondencetakesplaceonline,thepostalserviceisnotquiteobsolete.
TheReputationInstitute,aconsultancy,hasrevealedtheresultsofitslatest"Reptrack"CorporateReputationSurveyVariouss
Formilesaround,theneighborhoodswereemptyandsilent.Storesweredark,schoolsclosed,sidewalksempty.Atcorners,thest
Theabsenceofno-faultdivorceinEnglandandWaleslooksupdated.Peoplestayinlovelessmarriagesformanyreasons:anxiety
Everythingontheearthareinincessantchange,nothingcouldremainaneverlastingstate.
AmericanofficialshaveattimesusedphotographstobuttresstheirclaimsofRussianintervention.
Sincetheestablishmentwehaveaccumulatedabundantdomesticandinternationaltraderesources,andgainedmanyclosetradingp
A、正确B、错误A根据原文“Bythetimemymotherturnedfourteen,shecouldnolongerbearlifeinhergrandmother’shouse.Shefoundworkas
Ifbeingcarriedoutsuccessfully,theplanwillcompletelychangethetrafficconditionsinthecity.
随机试题
WhyWeNeedGoodTeachers[A]TherelativedeclineofAmericaneducationattheelementary-andhigh-schoollevelshaslong
以下哪项是缺铁性贫血较具特征的临床表现()。
调节内脏活动的较高级中枢位于
胸痛于咳嗽或深呼吸时加剧,最常见于( )。
甲房产开发公司在交给购房人张某的某小区平面图和项目说明书中都标明有一个健身馆。张某看中小区健身方便,决定购买一套商品房并与甲公司签订了购房合同。张某收房时发现小区没有健身馆。下列哪些表述是正确的?(2014年卷三第51题)
支出法国内生产总值是从社会最终使用的角度计算国内生产总值的。下列各项不属于支出法国内生产总值组成部分的是()。
统一资源定位器URL的格式是“协议://IP地址或域名/路径名/文件名”。()
简述信息技术学科综合性的特点。
奥运一百多年的历史始终陷入一种______,一方面它高扬超越民族的人类精神,另一方面参与竞争的基本单位是民族国家,前者表现为超越功利的尊重和欣赏,后者则是更实在的,不敢怠慢的国家荣誉和自尊心,金牌多寡成了竞争的______。依次填入画横线部分最恰当的一项是
艾滋病被称为“20世纪的瘟疫”,艾滋病病毒将人体内的()作为攻击目标。
最新回复
(
0
)