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
"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow
"Salty" Rice Plant Boosts Harvests British scientists are breeding a new generation of rice plants that will be able to grow
admin
2011-01-22
22
问题
"Salty" Rice Plant Boosts Harvests
British scientists are breeding a new generation of rice plants that will be able to grow in soil containing salt water. Their work may enable abandoned farms to become productive once more.
Tim Flowers and Tony Yeo, from Sussex University’s School of Biological Sciences, have spent several years researching how crops, such as rice, could be made to grow in water that has become salty.
The pair have recently begun a three-year programme, funded by the Biotechnology and Biological Sciences Research Council, to establish which genes enable some plants to survive salty conditions. The aim is to breed this capability into crops, starting with rice.
It is estimated that each year more than 10m hectares(公顷) of agricultural land are lost because salt gets into the soil and stunts(妨碍生长) plants. The problem is caused by several factors. In the tropics, mangroves(红树林) that create swamps(沼泽) and traditionally formed barriers to sea water have been cut down. In the Mediterranean, a series of droughts have caused the water table to drop, allowing sea water to seep(渗透) in. In Latin America, irrigation often causes problems when water is evaporated(蒸发) by the heat, leaving salt deposits behind.
Excess salt then enters the plants and prevents them functioning normally. Heavy concentrations of minerals in the plants stop them drawing up the water they need to survive.
To overcome these problems, Flowers and Yeo decided to breed rice plants that take in very little slat and store what they do absorb in cells that do not affect the plants’ growth. They have started to breed these characteristics into a new rice crop, but it will take about eight harvests before the resulting seeds are ready to be considered for commercial use.
Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants. Land that has been abandoned to nature will then be able to bloom again, providing much needed food in the poorer countries of the world.
Which of the following statements about Flowers and Yeo is true?
选项
A、They are students at Sussex University.
B、They are rice breeders.
C、They are husband and wife.
D、They are colleagues at an institution of higher learning.
答案
D
解析
问题是:对于福劳尔和杨来说,以下哪一项描述是正确的?文章第二段中提到,他们是在苏塞克斯大学生物科学学院从事研究。因此,选项D正确。
转载请注明原文地址:https://kaotiyun.com/show/JkUd777K
本试题收录于:
职称英语综合类A级题库职称英语分类
0
职称英语综合类A级
职称英语
相关试题推荐
ThinkandActorActandThinkThemajorityofsuccessfulseniormanagersdonotcloselyfollowtheclassicalrationalmodel
ScienceandTechnologyThereisadifferencebetweenscienceandtechnology.【B1】______Sciencehastodowithdiscoveringth
ImproveComputer-researchSkillsLikemanycollegestudents,JoseJuarezcarriesaroundapocket-sizedcomputerthatletshi
MusicalTrainingCanImproveCommunicationSkillsAmericanscientistssaymusicaltrainingseemstoimprovecommunicationsk
ClimateChange;TheLongReach1Earthiswarming.Sealevelsarerising.There’smorecarbonintheair,andArcticiceis
CellPhoneLetsYourSecretsOutYourcellphoneholdssecretsaboutyou.Besidesthenamesandnumbersthatyou’veprogram
Theyhavebeenlivingunderthemostappallingconditionsfortwoyears.
EarthAngels1.JoyingBresciawas8yearsoldwhenshenoticedthatcigarettebutts(烟头)werelitteringherhometownbeachin
Maryjusttoldusaveryfascinatingstory.
AIftheGardeners’argumentwassoundBbecauseshewasclevererthanotherchimpsCwhenshewantedtoeatDwhileshewasat
随机试题
长于祛风定痛、强筋健骨的药物是
下列除哪项外,均可引起腹痛( )。
关于甲类非处方药的有关说法正确的是
工商谈判的过程一般要经历()几个阶段。
()在环境保护法律法规体系中,除宪法外占有核心地位。
A公司为增值税一般纳税人,于2012年12月2日从甲公司购入一批产品并已验收入库。该批产品的价款为200万元,增值税税额为34万元,假设销售额和折扣额在同一张发票上分别注明。甲公司给予的商业折扣为5%,现金折扣条件为2/10,1/20,n/30,假定计算现
某公司现有生产及维修工人850人,文职人员56人,中层与基层管理人员38人,销售人员24人。近五年来,生产及维修工人的年均离职率高达8%,销售人员年均离职率为6%,文职人员年均离职率为4%,中层与基层管理人员年均离职率为3%,预计明年不会有改变。按企业已定
采用固定股利支付率政策分配利润时,股利不受经营状况的影响,有利于公司股票价格的稳定。()
设有学生表student(学号,姓名,性别,出生日期,院系)、课程表course(课程号,课程名,学时)和选课表score(学号,课程号,成绩),查询所修课程成绩都大于等于85分的学生的学号和姓名,正确的命令是
Idon’tthinkthenewstringent______(获取驾照的要求会导致交通事故减少).
最新回复
(
0
)