首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
下面的短文后列出了 7 个句子,请根据短文的内容对每个句子做出判断:如果该句提供的是正确信息,请选择A ; 如果该句提供的是错误信息,请选择B ; 如果该...
下面的短文后列出了 7 个句子,请根据短文的内容对每个句子做出判断:如果该句提供的是正确信息,请选择A ; 如果该句提供的是错误信息,请选择B ; 如果该...
admin
2020-12-24
62
问题
下面的短文后列出了 7 个句子,请根据短文的内容对每个句子做出判断:如果该句提供的是正确信息,请选择A ; 如果该句提供的是错误信息,请选择B ; 如果该句的信息文中没有提及,请选择C。
How Many Species Live in the Sea?
How many species are there in the sea? Some 230,000 recorded so far, all of which will soon be available to anyone at the click of a mouse.
The World Register of Marine Species is launched today by the Census of Marine Life. Once complete,it will provide the first definitive (权威性的)list of all known species in the worlds oceans. The Register is freely accessible online and includes descriptions of the species ancf photos. It will allow both the public and scientists to identify species they come acrossandeasilyrecogniseentirelynewspecies.
Until now censuses have been incomplete, focusing on single species or regions, making proper assessment of the impact of humans on oceans difficult. “ Convincing warnings about declining populations of fish and other marine species must rest on a valid census,” says Mark Costello of the University of Auckland, co-founder of the World Register.
Jesse Ausubel of the Sloane Foundation, which funds the Census of Marine Life, says he was first struck by the need to catalogue marine species in 2000, when he realised the UN Environment Programme’s Global Biodiversity Assessment had little information on what lived in the sea. Ausubel asked the marine life specialist, Frederick Grassle of Rutgers University, US, how many species there were in the sea. He was told that the best estimate was between 1 and 10 million.
“ I asked him if he could at least give me a list of the species that were known at the time" says Ausubel. Grassle was embarrassed to admit he could not. u How could there not be a list in the year 2000 of what we knew to live in the oceans?” marvels Ausubel.
Since then, the Census of Marine Life has worked to establish such a list. With the help of experts worldwide, they are carefully reviewing and compiling published records of marine species. Much of the work has focused on identifying species given different names that are in fact the same.
So far, the catalogue contains 122,000 species, about half the estimated 230,000 known species. There are still millions more ocean species to be discovered. But how about Grassle’s estimate of between 1 and 10 million total marine species?
“ We think that a million is reasonable,” says Ausubel, adding that experts have little idea what the upper limit could be.
The warning that the populations of fish and other marine species are declining is based on a valid census.
选项
A Right
B Wrong
C Not mentioned
答案
B
解析
转载请注明原文地址:https://ti.zuoweng.com/ti/AMsQKKKQ
相关试题推荐
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 ADoctorintheHou...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 ADoctorintheHou...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文后有2项测试任务:(1)第23~26题要求从所给的6个选项中为第1~4段每段选择1个最佳标题;(2)第27~30题要求从所给的6...
下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将其分别放回原有位置,以恢复文章原貌。 TheToughGrassth...
随机试题
临床上典型十二指肠溃疡的表现为 A.上腹持续剧痛 B.右上腹绞痛 C.餐前
预防饮水型砷中毒最有效的措施是 A.寻找低砷水源 B.理化方法除去水中砷
华兴股份有限公司因经营管理不善造成亏损,且未弥补的亏损达公司股本的1/4。公司董
《公路路基施工技术规范>(JTGF10-2006),标准代码中的F代表()
患者经行点滴即净,色黯红有血块,小腹疼痛拒按,舌紫黯,或有瘀点,脉细涩或弦涩。其
贷款偿还期一般用于计算项目偿还短期贷款所需的时间。()
SS4G型电力机车触头()使得实际接触面积增加,接触电阻减小A.终压力B.吸合压力C.弹簧压力
下列表述中符合我国刑法理论的是( )。A.没有行为就没有犯罪B.犯罪目的是犯罪构成的必要条件C.犯罪手段是犯罪成立的必要条件D.犯罪客体属于犯罪客观方面
慢性阻塞性肺疾病(COPD)肺气肿常见的病理类型是A.局灶性肺气肿B.小叶中央型肺气肿C.全小叶型D.混合型E.旁间隔性肺气肿
一般资料:求助者,女性,22岁,大学生。 案例介绍:求助者自幼学习成绩优异,进入大学后,每年都获得一等奖学金。一进入大四,求助者就开始复习,准备考研。三...