首页
登录
职称英语
Sharks are completely colour blind and only see things clearly if they are m
Sharks are completely colour blind and only see things clearly if they are m
游客
2023-08-26
23
管理
问题
Sharks are completely colour blind and only see things clearly if they are mostly light or dark, so wearing a light blue wet-suit that matches the colour of the sea will make you less likely to become the【C1】______of a shark attack, scientists have claimed.
In a breakthrough that could prove hugely【C2】______to divers navigating shark-filled waters, scientists found that the predator — like dolphins, seals and whales — is unable to distinguish between colours.
It can only see in black and white, so swimmers would be best off wearing a light blue wetsuit that【C3】______the colour of the water.
Costumes or wetsuits that camouflage(伪装)swimmers’ bodies in the sea water are less likely to【C4】______a shark’s attention than ones with bright, solid colours that【C5】______their outline.
Professor Nathan Hart, from the University of Western Australia, said "It’s the high【C6】______against the water rather than the colour itself which is probably【C7】______to sharks".
The researchers examined the eyes of dead sharks and found they had only one type of photoreceptor(感光器)in the retina(视网膜),【C8】______they could only see in monochrome(单色).
The U.S. Navy has conducted tests that suggested sharks were able to see yellow most【C9】______. The tests had been to see what would be the best colour for the lifejackets that pilots wear in case they have to eject and splash down in the ocean.
Professor Hart said it was more the high contrast of yellow, not the colour itself, that would increase the【C10】______for sharks.
He said "It may be possible to design swimsuits and surf craft that have a lower visual contrast to sharks and are therefore less attractive to them".
A)attractive I)emphasize
B)predicting J)concentration
C)victim K)matches
D)beneficial L)contrast
E)effectively M)clearly
F)corresponds N)visibility
G)indicating O)sensitive
H)draw [br] 【C10】
选项
答案
N
解析
此处填名词。分析可知该句话和倒数第五段引号内的意思一致,物体的视觉对比度高了,其被看见的可能性也就大了,因此所填词应和能见性或可见性等意思相近,备选项中符合的为N)visibility。
转载请注明原文地址:https://tihaiku.com/zcyy/2958805.html
相关试题推荐
Inthethrillingprogressiveyearsoftheearly20thcentury,fewthingswer
Inthethrillingprogressiveyearsoftheearly20thcentury,fewthingswer
Inthethrillingprogressiveyearsoftheearly20thcentury,fewthingswer
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
AslongastheAmericanlandwasnotcompletelysettledandtheelementsof【
LookattheSizeofThoseThings!Sauropods(蜥脚龙)unpr
随机试题
Isoceanplasticwasteaglobalproblemoralocalissue?A、Aglobalproblem.B、A
Onhearingofhisbeingelectedourmonitor,wecouldn’thelpcheering.A、听到他被选为我
ThepassagegivesadescriptionofthecontaminationinNewOrleansafterHurri
A.P(X≤λ)=P(X≥λ) B.P(X≥λ)=P(X≤-λ) C. D
为了防止MicrosoftWord在页面顶端单独打印段落末行或在页面底端单独
患者,男性,25。因肺炎静滴新型青霉素Ⅰ,1天后出现关节痛、皮疹、尿量减少。尿常
对于可能引起用药安全问题的中药处方,应A.拒绝调配 B.自行更改后调配 C.
10岁男孩,因发热、咳嗽5天,伴胸闷、气促,既往无先心病史。查体:体温38.5℃
下列行为,危害国家安全、构成间谍罪的有( )。 A.参加间谍组织 B.泄露
应收账款保理的主要意图在于将逾期未能收回的应收账款转让给保理商,从而获取相应的资
最新回复
(
0
)