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
30
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
Accordingtotheconversation,whatkindofweatherisusualforMarch?[br][o
Acollegegraduatejuststartedajobandhefoundsomethingstrange.Oneof
某医疗机构接诊了一例鼠疫患者,该机构应在几小时内报告到疾病预防控制机构A.2小时
设备的贬值因素比较复杂,主要包括()。A.实体性贬值 B.非实体性贬值
男,60岁。咳嗽气喘15年余,每至冬季加重,面色淡白,咳声无力,动则气喘,痰清稀
前列腺增生症肾阳衰微证选用的方药为A.八正散 B.沉香散 C.补中益气汤
各国法律所规定的征收的法定条件有()。A:为了国家发展的需要 B:为了公共利益
并联电容器组例行巡视时应检查避雷器垂直和牢固,外绝缘无破损、裂纹及放电痕迹,运行
以下是2000年全国资金流量表的部分资料,请根据这些资料对反映该年宏观经济运行的
以下有关公安机关性质的描述正确的是( )A.公安机关是国家行政机关的重要组成部
最新回复
(
0
)