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
What is the purpose of Tommy Carter’s research?
What is the purpose of Tommy Carter’s research?
admin
2010-07-24
66
问题
What is the purpose of Tommy Carter’s research?
Thomas Tommy Carter is a plant scientist in North Carolina.He works for the Agricultural Research Service in the United States Department of Agriculture.He leads Team Drought,a group of researchers at five universities.They have been using conventional breeding methods to develop and test soybeans that can grow well under dry conditions.Tommy Carter started working on drought-resistant soybeans in 1981.His research has taken him as far as China,where soybeans have been grown for thousands of years.Farmers in the United States,however,have grown soybeans for only about a century.Tommy Carter says the soybeans they grow are for the most part genetically similar.More differences,or diversification,could better protect crops against climate changes that can reduce production.Those changes include water shortages which could increase from global warming.The Agriculture Department has a soybean germplasm collection,a collection of genetic material passed from one generation to the next.Members of Team Drought studied more than 2,500 examples from the collection.They looked at ones from the ancestral home of soybeans,Asia.They searched for germplasms that could keep plants from weakening during hot, dry summers in the United States.Tommy Carter says they found only five.But these drought-resistant lines,he says,produce four to eight bushels more than normal soybeans under drought conditions.The yield depends on location and environment.
选项
A、China is the only country to grow soybeans.
B、China is the ancestral home of soybeans.
C、China has a long history of growing soybeans.
D、China has different kinds of soybeans.
答案
C
解析
短文提到Tommy Carter为研究抗旱大豆,他远道去到中国.因为中国有几干年种植大豆的历史,C与此相符,故为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/5lN7777K
0
大学英语四级
相关试题推荐
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthefamily.Membersofafamilylivetogetherunderthe
Iaskedsuccessfulpeoplewhatthesecretoftheirsuccesswas.I【B1】______anearlydiscussionwithavicepresidentofalarge
OneofthemostexcitingchangesineducationintheUnitedStatestodayisthe【S1】______growthofdistanceeducationatthepos
Menseemtohavealwaystakeaninterestinmeteorites(陨星),but【C1】______theearlynineteenthcentury【C2】______theseobjectsco
Rob8app,27,fromKent,lovedgameswhenhewasattendingschool.Infact,helovedgamessomuchthathedecidedtobecomeaP
A、Forprotectionagainstotherdogs.B、Forprotectionagainstotheranimals.C、Justforfun.D、Forthepurposeofguardingtheh
A、Sixweeks,B、Sixmonths.C、Sixyears.D、Sixteenyears.C
随机试题
在菲利普斯曲线与横轴的交点处,下列说法不正确的是()
阅读《张中丞传后叙》中的一段文字,回答问题:南霁云之乞救于贺兰也,贺兰嫉巡、远之声威功绩出己上,不肯出师救。爱霁云之勇且壮,不听其语,强留之,具食与乐,延霁云坐。霁云慷慨语曰:“云来时,睢阳之人不食月余日矣!云虽欲独食,义不忍;虽食,且不下咽!”
溶血对血清中的酶活性影响最大的是
根尖周脓肿与牙周脓肿鉴别点,除外
地下水位下降时,建筑物的沉降可能会()。
建筑工程图样中,各楼层标高以( )为单位标注。
根据规定,个人购买除车辆和房租外的货物和服务,每人每年申报退税的销售金额(含税价格)超过()万元人民币的部分,不适用外国驻华使(领)馆及其馆员在华购买货物和服务增值税退税政策。
岩溶地貌主要发育在碳酸岩类岩石地区,主要岩石有石灰岩、白云岩等。该类岩石极易为水溶蚀,从而形成特有的岩溶景观。()
某老师利用课堂提问、课堂讨论等形式来决定自己是否需要改善教学,这种评价类型属于()评价。
近年来,我国普遍指导与推广研究性学习、合作学习等教学方式,其主要理论依据是()。
最新回复
(
0
)