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
72
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 World Register of Marine Species is only open to scientists.
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/5MsQKKKQ
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。 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...
随机试题
通过物理和化学的方法将被洗物品上的有机物、无机物和微生物尽可能降低到比较安全的水
不可抗辩条款意味着,保险人有()年时间来调查投保人或被保险人的诚信情况。 A
主张教学的任务在于训练学生的技能,训练学生思维形式的教育理论被称为()。 A
A.癫痫单纯部分性发作 B.癫痫不典型失神发作 C.癫痫典型失神发作 D.
气象检测器的防雷接地电阻为()。
对因咽部肿胀压迫呼吸道导致窒息的患者,应当
患者,男,11岁,下颌面部呈相对后退位,口唇闭合呈现口唇肌肉紧张,覆5mm,覆盖9mm,四个第一磨牙Ⅱ类关系,上前牙拥挤明显,ANB为10.0°,SNA为...
当额定电流630A以上时,推荐采用()。A.密集絶缘型母线槽;B.空气绝缘型母线槽;C.插接式母线槽;D.滑接式母线槽。
咳喘,痰多色白滑、易咯出,多见于A.风寒束肺证B.寒邪客肺证C.饮停于肺证D.痰湿阻肺证E.肺气虚证
1.位于县城的某运输公司为增值税一般纳税人,具备国际运输资质,2015年7月经营业务如下: (1)国内运送旅客,按售票统计取得价税合计金额177...