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
26
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] What is the last paragraph mainly about?
选项
A、Social behaviors of victims.
B、Motivation of shark attacks other than feeding.
C、Small cuts which are not life-threatening.
D、Dominance behaviors of land animals.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3980679.html
相关试题推荐
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Worldwidethereareprobably70to100sharkattacksannuallyresultingina
Bytheyear2020,China’spopulationprobably________1.4billion.A、willbereach
IfyouhaveachancetogotoFinland,youwillprobablybesurprisedtofin
【T1】Fathersexposedtopoisonoussubstancesareprobablyjustaslikelytob
InBritain,thebestseasonoftheyearisprobably______spring.A、laterB、latter
Ifherefusesto______myplan,Icanprobablyfindsomeonemorecooperative.A、pu
YouprobablyknowwhoMarieCuriewas,butyoumaynothaveheardofRachel
YouprobablyknowwhoMarieCuriewas,butyoumaynothaveheardofRachel
随机试题
[originaltext][18]Weuseallsortsofserviceswithoutthinkingabouthowweg
双壁波纹管标称外径≤110mm,其落锤冲击试验落锤质量和冲击高度为()。A
肺气肿时,呼吸困难的主要特点是()A.呼吸浅快 B.吸气费力 C.呼吸
五行中具有生化、承载、受纳作用的为()。A.木B.火C.土D.金E.水
不属于盐炙法炮制的药材是A:补骨脂B:延胡索C:黄芪D:杜仲E:黄柏
新的养老保险制度实施以后参加工作的职工,如果个人缴费年限满()年,在退休后可按月
不属于原发性高血压导致靶器官受损并发症靶器官的是A:脑 B:心 C:肾 D
社会工作者的间接服务角色不包括()。A.行政管理者 B.关系协调者 C.资源
我不知道其他考官对你如何看,我对你的感觉是你的回答虽然不错,但是显得过分成熟和世
(2019年真题)根据税收征收管理法律制度的规定,从事生产、经营的纳税人应当自领
最新回复
(
0
)