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
26
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.
It is implied in the passage that ______.
选项
A、many scientists had known dinoflagellate before 1988
B、there had been no such organisms before 1988
C、many scientists were in doubt about the nature of the organism in 1988
D、no scientists knew anything about the organism in 1988
答案
C
解析
推断题型见第二段第二句: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. (1988年在北卡罗莱纳州立大学发现了这种生物,但同时几乎没什么人相信它的存在,更没有人相信它非同寻常的食肉天性(predatory nature)了。)因此C为答案。
转载请注明原文地址:https://kaotiyun.com/show/wJgO777K
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
Artificialflowersareusedforscientificaswellasfordecorativepurpose.Theyaremadefromavarietyofmaterials,suchas
ManyEuropeansconsiderAmericansoverweight,wasteful,andtheydon’tunderstandinternationalpolitics.
Theabsenceofno-faultdivorceinEnglandandWaleslooksupdated.Peoplestayinlovelessmarriagesformanyreasons:anxiety
Amongalltheleisureactivities,sporthasbecomeanimportantoptionforthepeopletopursueexperiencewithits______advanta
Dostudentslearnasmuchwhentheyreaddigitallyastheydoinprint?Forbothparentsandteachers,knowingwhethercomputer-
TheAmericanAcademyofPediatrics(AAP)justreleaseditsupdatedguidelinesforchildren’smediause.Therecommendationsr
Goodnewswassometimesreleasedprematurely,withtheAmericanrecaptureoftheporthavingannouncedhalfadaybeforethedef
Thismeetingwillhighlightrecentadvancesintheapplicationofgenomicstechniquestothestudyofepigenetics.
BecausedrummerTonySmithpavedthewayforlaterjazzmusicians,heisconsidereda________ofthatstyle.
ThewomanoverthereisnotonebutJuliaandMary’smother.
随机试题
在Word中,利用“插入”菜单中的“图片”命令,不可能在Word文档中插入
某基层医疗机构要转型为社区卫生服务中心该社区卫生服务中心要实施WHO西太区提出的“健康新地平线”的预防策略,针对的人生三个不同阶段是
男婴,7个月,近2个月来肤色苍白,食欲减退入院。生后一直人工喂养,未加辅食。体检:营养差,皮肤、黏膜苍白,心前区有Ⅱ级收缩期杂音,肝肋下3cm,脾肋下1cm。化验:血红蛋白及红细胞均低于正常,白细胞、血小板及网织红细胞均正常。患儿最可能的诊断是(
法院管辖可分为级别管辖和地域管辖。那么划分地域管辖的原则或主要依据应当是( )。
高压开关设备主要用于关合及开断()及以上正常电路线路。
工程建设企业标准一般包括企业的()。
说服教育法的方式有语言文字说服和()。
民众作为城市的主人和管理服务的对象,对公共政策制定应该享有重要的发言权,但在现实生活中,有些部门往往不尊重甚至忽视、削弱这样的发言权。因为事前征求民意、听取民意不够,所以公众对一些城市管理决策不知情,更谈不上什么理解与支持。也因为事前被忽略的声音没有被及时
legalcode
ThefirstfourminutesWhendopeopledecidewhetherornottheywanttobecomefriends?Duringtheirfirstfourminutestog
最新回复
(
0
)