首页
登录
职称英语
Worldwide there are probably 70 to 100 shark attacks annually resulting in a
Worldwide there are probably 70 to 100 shark attacks annually resulting in a
游客
2025-03-03
16
管理
问题
Worldwide there are probably 70 to 100 shark attacks annually resulting in about 5 to 15 deaths. We say "probably" because not all shark attacks are reported: our information from Third World countries is especially poor, and in other areas efforts are sometimes made to keep attack quiet for fear of bad publicity. Historically the death rate was much higher than today, but the presence of readily available emergency services and improved medical treatment has greatly reduced the chances of deaths. Actual numbers of shark attacks certainly are going up each decade because of increasing numbers of bathers in the water, but there is no indication that there is any change in the rate of attack.
By far the most common shark attacks are "hit and run". These typically occur in the surf zone where swimmers and surfers are the normal targets. The victim seldom sees its attacker and the shark does not return after a single bite or wound. In most instances, these probably are cases of mistaken
identity
that occur under conditions of poor water visibility and a harsh physical environment. A feeding shark in this habitat must make quick decisions and rapid movements to capture its traditional food items. Sharks might occasionally misinterpret a human for its normal prey(猎物). We suspect that, upon biting, the shark quickly realizes that the human is a foreign object, or that it is too large, and immediately releases the victim and does not return.
Some of these attacks could also be related to social behaviors unrelated to feeding, such as dominance behaviors seen in many land animals. Injuries to "hit and run" victims are usually confined to relatively small cuts, often on the leg below the knee, and are seldom life-threatening. [br] Not all shark attacks are reported because______.
选项
A、bad news tends to be hidden
B、it is too costly to publicize the data
C、some information is just tricky
D、no one likes to collect the statistics
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3980675.html
相关试题推荐
Ifherefusesto________myplan,Icanprobablyfindsomeonemorecooperative.
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Thepassagetellsusabout______.[br]Futuremanwillprobably______.A、haves
IfyouhaveachancetogotoFinland,youwillprobablybesurprisedtofin
【T1】Fathersexposedtopoisonoussubstancesareprobablyjustaslikelytob
【T1】Fathersexposedtopoisonoussubstancesareprobablyjustaslikelytob
YouprobablyknowwhoMarieCuriewas,butyoumaynothaveheardofRachel
YouprobablyknowwhoMarieCuriewas,butyoumaynothaveheardofRachel
随机试题
Ourlevelofhappinessthroughoutlifeisstronglyinfluencedbythegenesw
股权投资基金在运作过程中会进行项目收集、项目初审、尽职调查、投资决策与协议签署等
根据《测绘仪器防霉、防雾、防锈》,下列测绘仪器三防要求中,错误的是()。A.带
认为儿童教育内容包括“歌诗”“习礼”和“读书”,提出“随人分限所及”的儿童教育思
下列场所中,消防用电应按一级负荷供电的是( )。A.座位数超过3000个的体
经营者的不正当竞争行为给被侵害的经营者造成的损失难以计算的,被侵害人可以请求的赔
《债券市场专业投资者风险揭示书》包括的必备条款有()。 A.投资者适当性B
保险原则包括()。A.保险利益原则 B.近因原则 C.公平公正原则 D.损
按照加涅的学习结果分类的观点,调节和控制自己的注意、学习、记忆、思维和问题解决过
A.齿痕舌 B.胖大舌 C.芒刺舌 D.瘘软舌 E.瘦薄舌根据中医望诊理
最新回复
(
0
)