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
专升本
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died i
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died i
admin
2013-05-22
17
问题
Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico.
Eleven gray whales have died in the San Francisco Bay in the last three weeks. No one knows why the whales are dying.
Last year 270 whales died along the whales’ migration route. Many people think starvation is the cause. This year the dead whales seem to have more blubber (fat) on them.
Twenty years ago, the gray whale was listed as an endangered species.
Some scientists think that the larger number of whales makes it hard to find enough food. More whales create more pressure on the food supply, a supply that some scientists say may have dwindled as a result of the warm waters of El Nino.
Most of the whales have been dead for many days before they are found and studied. This makes it hard to find the reason for death.
65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year. The whales could be dying from many diseases, but it may be over-population.
Why might the increasing number of whales cause problems with their health?
选项
A、There’s not enough room for them in Alaska.
B、There may not be enough food for them in Alaska.
C、They get pushed ashore.
D、There are more whales to spread disease.
答案
B
解析
由倒数第三段可知。
转载请注明原文地址:https://kaotiyun.com/show/BceC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Tokyo,thecapitalofJapan,isoneofthelargestcitiesintheworld.Itisalsooneoftheworld’smostmodern(现代化的)cities.T
Forthispart,youaresupposedtowritealetterof100--120wordsbasedonthefollowingsituation.Remembertowriteitclear
JapanbombedPearlHarborin1941.TheUnitedStateswasmadattheJapanesesotheymademanyJapanese-Americansleavetheirho
Pickouttheappropriateexpressionsfromtheeightchoicesbelowandcompletethefollowingdialoguesbyblackeningthecorresp
Acompletelynewsituationwill______whentheexaminationsystemcomesintoexistence.
Oneanswertothequestionsoflandshortagewassuggestedbyacommitteesomeyearsago.Acitywastobebuiltatsea,housing
The______gardenlooksverybeautiful.
Christopherisnotmarriedyet:heisstilla【36】.Heisinterested【37】football,whichisanexciting【38】andenjoys【39】towatch
根据中文提示,将对话中缺少的内容写在线上。这些句子必须符合英语表达习惯。打句号的地方,用陈述句;打问号的地方,用疑问句。提示:程红和Peter正在一家中国餐馆点菜。程红要了三两饺子而Peter要了半斤;当服务员问及喝什么时,程红要了一杯绿茶;Pe
I’vegivenupmyadvice.Whetherornotyouactonitis______toyou.
随机试题
A.咯血颜色鲜红B.铁锈色血痰C.砖红色胶冻样黏痰D.粉红色乳样痰E.粉红色浆液性泡沫样痰葡萄球菌肺炎可见
量化是指将连续变化的灰度或密度等模拟信息,转化成离散的数字信息的过程,有关量化的描述,正确的是
肛裂的好发部位是
褐色磨木浆(桦木)()
A公司以其持有的对B公司20%的股权,与C公司的10万平方米房地产进行交换,此项交易为()。
简述创造性思维的特点,在数学教学中如何培养学生的创造性思维。
根据下面材料回答问题。上年的中央拨款约为多少亿元?
设z=f(2x-y,ysinx),其中f(u,v)有连续的二阶偏导数,求
TheAmericaneconomicsystemisorganizedaroundabasicallyprivate-enterprise,market-orientedeconomyinwhichconsumerslarg
Itishardtopredicthowscienceisgoingtoturnout,andifitisreallygoodscienceitisimpossibletopredict.Ifthethi
最新回复
(
0
)