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
The researchers put all the plants in a greenhouse to grow under normal conditions for forty days. Then, for fifteen days after
The researchers put all the plants in a greenhouse to grow under normal conditions for forty days. Then, for fifteen days after
admin
2010-07-24
89
问题
The researchers put all the plants in a greenhouse to grow under normal conditions for forty days. Then, for fifteen days after that, the plants did not receive any【S1】______. The normal plants lost their green color. Finally, they lost their leaves. But the researchers say the【S2】______plants kept their leaves and their【S3】______.
After the fifteen dry days, all the plants were watered again for a week. The transgenic plants returned to【S4】______growth, and their seed production was close to normal But the other plants all died.
Rosa Rivera says the transgenic plants kept a【S5】______high water level. They also【S6】______to produce energy during the dry period, although at a reduced level. The amount of seeds they produced was close to normal. In addition, the researchers found that the plants could【S7】______on only thirty percent of the normal amount of【S8】______water. Yield loss was minor, they said.
The【S9】______appeared late last year in the Proceedings of the National Academy of Sciences. The University of California has applied for patent【S10】______for the technology. The researchers expect to move forward with field testing of the transgenic tobacco in late August. They hope for similar results with crops like tomatoes, rice, wheat and cotton.
A)similar I)color
B)keep J)production
C)water K)level
D)relatively L)findings
E)normal M)continued
F)survive N)protection
G)gained O)irrigation
H)transgenic
【S5】
选项
答案
D
解析
此处应填副词。前文中说转基因植物抗旱,能基本保持在一个相对高水分的水平。除此,没有副词可选。
转载请注明原文地址:https://kaotiyun.com/show/WPN7777K
0
大学英语四级
相关试题推荐
Thewaythatpeoplespendtheirmoney,andtheobjectsonwhichtheyspendit,arethelastareaswherefreechoiceandindividu
A、Attheairport.B、Atthepostoffice.C、Atthebookstore.D、Atthetravelagency.B对话涉及的是寄一封航空信到多伦多的邮费。根据对话的内容判断,谈话的地点应当是邮局。
A、Sheisaprofessionalwriter.B、Sheisanaccountant.C、Sheisaneconomist.D、Sheisabusinesswoman.B
IntheUnitedStatestoday,thecostofhousingisveryhigh.Itisvery【B1】______topayonefourthtoonethirdorafamily’s
A、Hehaspromisedtokeepsmokingcigarettes.B、He’sgainedaprofitfromhisbusiness.C、Cigarettesbecomecheaperrecently.D、
A、Itshouldbehigher.B、It’sverygood.C、It’sthesameasthepostofficepays.D、Itvariesaccordingtotheperson’sexperien
A、Hewillloseweightquickly.B、Hisweightwillremainunchanged.C、Hewilllosesomeweightduringhisdiet.D、Hewillgainwe
Researchersfoundfamilyinfluenceddelinquency.Attachmentandinvolvementwereboth【S1】______relatedtodelinquency.Children
A、Tochooseatopicforatermpaper.B、Totypesomeresearchmaterials.C、Tofindmaterialnotavailableanywhereelse.D、Tole
A、Shehaspencilsandpaperforhim.B、Theywillmakefriendsafterclass.C、Shetooknotesfortheman.D、Shehasenoughnotes
随机试题
PASSAGEONEWhatcanreducethecitizens’emotionalresponseaftertheterroristattack?
动脉粥样硬化主要发生在()。
进程的切换是由进程状态的变化引起的。以下不能引起进程切换的是
对鼻窦的描述,正确的是
动物细胞的遗传信息主要储存于
卡托普利的主要作用机制为
四环素的“杂质吸收度”检查不包括
王某是某公司的职员,月薪颇丰,该公司作为其个人所得税的扣缴义务人每月为其代扣、代缴税款。一日王某要求公司开具代扣、代收税款凭证,公司财务人员拒绝开具,对此分析正确的是:()。
为了保证个人信用信息的合法使用,保护个人的合法利益,中国人民银行制定颁布了()等法规,采取了授权查询、限定用途、保障安全、查询记录、违规处罚等措施,保护个人隐私和信息安全。
经营者的不正当竞争行为给被侵害的经营者造成的损失难以计算的,被侵害人可以请求的赔偿额为()。
最新回复
(
0
)