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
外语
Scientists have known for some time that certain plants, called hyperaccumu-lators, can concentrate minerals at levels a hundred
Scientists have known for some time that certain plants, called hyperaccumu-lators, can concentrate minerals at levels a hundred
admin
2014-09-29
82
问题
Scientists have known for some time that certain plants, called hyperaccumu-lators, can concentrate minerals at levels a hundredfold or greater than normal.
A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice.
Hyperaccumulators run the entire range of the plant world.
They may be herbs, shrubs, or trees.
Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
Look at the four squares[
]that indicate where the following sentence can be added to the passage.
Certain minerals are more likely to be accumulated in large quantities than others.
Where would the sentence best fit?
选项
A、Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal. Certain minerals are more likely to be accumulated in large quantities than others. A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice.
Hyperaccumulators run the entire range of the plant world.
They may be herbs, shrubs, or trees.
Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
B、Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal.
A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice. Certain minerals are more likely to be accumulated in large quantities than others. Hyperaccumulators run the entire range of the plant world.
They may be herbs, shrubs, or trees.
Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
C、Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal.
A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice.
Hyperaccumulators run the entire range of the plant world. Certain minerals are more likely to be accumulated in large quantities than others. They may be herbs, shrubs, or trees.
Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
D、Scientists have known for some time that certain plants, called hyperaccumulators, can concentrate minerals at levels a hundredfold or greater than normal.
A survey of known hyperaccumulators identified that 75 percent of them amassed nickel; cobalt, copper, zinc, manganese, lead, and cadmium are other minerals of choice.
Hyperaccumulators run the entire range of the plant world.
They may be herbs, shrubs, or trees. Certain minerals are more likely to be accumulated in large quantities than others. Many members of the mustard family, spurge family, legume family, and grass family are top hyperaccumulators. Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/qGfO777K
0
托福(TOEFL)
相关试题推荐
Completethenotesbelow.Areasdealtwith:【L1】______northsuburbsRent:from【L2】£______to£______am
Whatiscurrentlythemainareaofworkofeachofthefollowingpeople?ChooseFIVEanswersfromtheboxandwritethecorrect
Completethetablebelow.WriteNOMORETHANTHREEWORDSAND/ORANUMBERforeachanswer.USARESEARCHPROJECTSINTOCLASSSIZES
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.Researchingtheoriginofmedievalmanus
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.Researchingtheoriginofmedievalmanus
Completethenotesbelow.WriteNOMORETHANTWOWORDSforeachanswer.AdvertisingEffectTheimportantfactortoconsider
Whatisthemainopinionofeachofthefollowingpeople?ChooseFIVEanswersfromtheboxandwritethecorrectletter,A-G,ne
Completethesentencesbelow.WriteNOMORETHANTHREEWORDSforeachanswer.Ifyouneedtofindinformationonacertainbook
Choosethecorrectletter,A,BorC.ProjectonusingnaturaldyestocolourfabricsJimeventuallydecidedtodoapractical
Listenandchoosethecorrectanswer.Whatpointdoesthespeakermakeaboutskating?
随机试题
某外国公司在向我国政府申请设立外资企业时,存在以下情况,请问其中哪些违反我国法律的规定?()
资产支持证券仅限于在合格投资者范围转让,转让后,持有资产支持证券的合格投资者合计不得超过()人。
增值税一般纳税人2016年7月发生的下列经济行为中可以开具增值税专用发票的是()。
咨询方案中需要明确的求助者的权利包括()。
已知正数a、b满足a+b=1,则的值:
习近平主席说过,“无论国际风云如何变幻,中国维护国家主权和安全的信心和决心不会变,中国维护世界和平、促进共同发展的诚意和善意不会变”。这段话蕴含的哲学原理是()。
Intheworldofentertainment,TVtalkshowshaveundoubtedlyfloodedeveryinchofspaceondaytimetelevision.Andanyonewho
Whatisnewabouttheslaves’stories?Whatisthetireofthecollectionofrecordings?
Whatisthemanlookingfor?
Thisyear,recordnumbersofhighschoolstudentsobtainedtopgradesintheirfinalexams,yetemployerscomplainthatyoungpe
最新回复
(
0
)