首页
登录
职称英语
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina. H
[originaltext] Thomas Tommy Carter is a plant scientist in North Carolina. H
游客
2024-02-09
36
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 soy-bean 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 germplasms Tommy Carter’s team found?
选项
A、To find the similarity of soybeans in the world.
B、To protect soybeans against dry condition.
C、To collect materials for their papers.
D、To study the impact of global warming.
答案
B
解析
短文提到Tommy Carter的研究小组试图培育能在干旱条件下生长良好的大豆,之后又提到研究人员寻找在美国炎热干旱的夏季不易变得纤弱的种质,B与此相符,故正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3435451.html
相关试题推荐
[originaltext]ThefirstpostalserviceinNorthAmericabeganinNewEnglan
[originaltext]ThefirstpostalserviceinNorthAmericabeganinNewEnglan
[originaltext]ThefirstpostalserviceinNorthAmericabeganinNewEnglan
[originaltext]Theproceduresforrentinganapartmentindifferentcounties
[originaltext]W:Hello,UltimateComputers.MayIhelpyou?M:Yes,thisisJac
[originaltext]W:Hello,UltimateComputers.MayIhelpyou?M:Yes,thisisJac
[originaltext]W:Excuseme,waiter,butIthinkthereissomethingwronginmy
[originaltext]W:Haveyouseenthedoctoraboutyourskinconditionyet?M:Oh,
[originaltext]W:Haveyouseenthedoctoraboutyourskinconditionyet?M:Oh,
[originaltext]W:Haveyouseenthedoctoraboutyourskinconditionyet?M:Oh,
随机试题
Whileradiobroadcastingwasstill【C1】_____________itsearlystagethewon
Wordsworthwasoneofthegreatestpoets______livedinthe19thcentury.A、thatB
WhichofthefollowingisNOTmentionedasafactortomakeretailsalesrise?[
在Windows系统中,当鼠标指针呈现()形状时表示处于等待状态。
标签上有效期具体表述形式正确的是( )。A.有效期至××年××月×日 B.有
当交流电源故障较长时间不能恢复,使蓄电池组放出容量超过其额定容量的()及
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
2020年度居民个人综合所得(无境外所得)在平时已依法预扣预缴个人所得税款的,年
消弧线圈容量选择及其他指标: 中性点经消弧线圏接地的发电机,在正常情况下,长时
施工成本控制的依据有()。A.工程承包合同 B.施工成本预测资料 C.施工成
最新回复
(
0
)