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
2011-03-26
41
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 E1 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.
______ has warmed the waters off Alaska.
选项
A、El Nino
B、The sun
C、Over-population
D、Pressure
答案
A
解析
第五段。食物缩小的原因有可能是因为水的温度。
转载请注明原文地址:https://kaotiyun.com/show/OYvC777K
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
Parentsoftenchecktheirchildren’shomeworkand(makeabigfussovergrades).
Mostpeople______.Monkeys______.
Medicalcarereformhasbecomethiscountry’smostimportantpublichealth______.
WhichofthefollowingstatementsisTRUE,accordingtotheauthor?Asindicatedinthepassage,beingfreetoactonone’sopi
Thefindingsshowingeneraltermsthatcontractionofthebrainbegins______inpeopleinthecountrythaninthetowns.
Hewaswelloverthirtybeforehe(取得……资格)adoctor.
Whatkindsofthingshaveactivistsdonetoprotectresearchanimals?Whatwillhappeniftheresearchersdon’tmeetthedemand
OnedayinJanuary,myuncle,mycousinandIdecidedtogohunting.Weleftbycarintheafternoon.ItwasaRangeRoverwith
Myfatherseldomletmedothat,______.
InJuneof1973,ninewhalesbeachedontheFloridacoast.Beachingmeansswimmingoutoftheoceanontothebeach,andusually
随机试题
A.牡蛎散B.小青龙汤C.黄土汤D.半夏泻心汤(2008年第99,100题)体现散收同用、祛邪护正配伍的方剂是()
绘画作品:《伏尔加河纤夫》
气血两虚的临床表现为气陷证的临床表现为
关于装配式混凝土建筑轻质隔墙系统的设计,以下说法错误的是?[2018—066]
为使沥青面层与非沥青材料基层结合良好,在基层上浇洒的沥青薄层称为( )。
合同成立后,如果按照合同有关条款或者交易习惯仍不能确定的,《合同法》规定,价款或者报酬不明确的,按照()履行。
总线宽度只与下列()选项有关。Ⅰ.控制线根数Ⅱ.地址线根数Ⅲ.数据线根数
一位长期从事醉酒及酒精中毒研究的医生发现,一般情况下,醉酒者的暴力倾向远远高于未饮酒者或适度饮酒者。据此,该医生断定,具有暴力倾向的人容易喝醉酒。以下哪项最严重地削弱了这位医生的断定?
Biographiescanbewearisomecontrivances,oftentoolongandtoodetailedfortheirowngood.Biographersmakethemistakeofs
Whatisthematterwiththewoman?
最新回复
(
0
)