首页
登录
职称英语
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina He
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina He
游客
2023-06-28
61
管理
问题
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.
16 What is the purpose of Tommy Carter’s research?
17 Why did Tommy Carter go to China for his soybean research?
18 What do we learn about the five germplasm Tommy Carter’s team found?
选项
A、They produce the same yield in different locations.
B、They are suitable to grow only in the United States.
C、They produce better quality soybeans under dry weather.
D、They have better production under drought conditions.
答案
D
解析
短文提到这5个种质在干旱的条件下比一般的大豆产量要高,D与此相符,故为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2789390.html
相关试题推荐
[originaltext]Yourco-workershavebeengossipinglessasoflate,andthat
[originaltext]Yourco-workershavebeengossipinglessasoflate,andthat
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext]M:Cindy,whatishappinessinyourmind?W:Whyask?It’sadiff
[originaltext](5)ThedryconditionsinCaliforniaaregoodforpeoplewho
[originaltext]Windturbinesaretallstructureswithlargebladesusedtop
[originaltext]Windturbinesaretallstructureswithlargebladesusedtop
[originaltext](1)Thepriceofgoldfelltoitslowestlevelinfiveyears
随机试题
______fromadistance,theislandlookedlikeacloud.A、ViewingB、ToviewC、View
Asurveysuggeststhatnearlyoneinsixchildrenhasdifficultytotalk.A、tole
加强党的建设,必须放在首位的是()A.作风建设 B.组织建设 C.反对腐败
A.三萜皂苷B.甾体皂苷C.甲型强心苷D.乙型强心苷E.胆汁酸甾核C侧链为六元不
场地、器材等物质条件并不是竞技体育构成和发展的条件。()
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性。( )
A.0度(无痛) B.Ⅰ度(轻度疼痛) C.Ⅱ度(中度疼痛) D.Ⅲ度(重
共用题干 第三篇NuclearPowerandItsDangerNuc
置业投资经济效果的好坏受( )的影响。A.投资金额 B.贷款规模 C.市场
中医养生学方法众多,其基本养生观念有A.调饮食 B.慎起居 C.适寒温 D
最新回复
(
0
)