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
[A]blossoms[I]accepts [B]pieces[J]firmly [C]composes[K]grow [D]parts[L]desirable [E]securely[M]produce [F]ex
[A]blossoms[I]accepts [B]pieces[J]firmly [C]composes[K]grow [D]parts[L]desirable [E]securely[M]produce [F]ex
admin
2016-10-07
34
问题
[A]blossoms[I]accepts
[B]pieces[J]firmly
[C]composes[K]grow
[D]parts[L]desirable
[E]securely[M]produce
[F]extremely[N]shape
[G]buds[O]joint
[H]agreeable
We often think of agriculture as planting seeds and harvesting crops. But many crops do not come from seeds. Many kinds of trees and plants are grown from【C1】______cut from existing trees and plants. This is called grafting(嫁接).
Farmers cut branches or young growths, called【C2】______, from one plant and place them on a related kind of plant. The branch or bud that is grafted is called a scion(接穗). The plant that【C3】______the graft is called the root stock. Over time, the【C4】______from the two plants grow together. The grafted plant begins to【C5】______the leaves and fruit of the scion, not the root stock.
A graft can be cut in several ways. A cleft graft(割接,劈接), for example, requires a scion with several buds on it. The bottom of the scion is cut in the【C6】______of the letter V. A place is cut in the root stock to accept the scion. The scion is then【C7】______placed into the cut on the root stock. Growth medium is put on the【C8】______to keep it wet and help the growth.
Grafting can join scions with【C9】______qualities to root stock that is strong and resists disease and insects. Some common fruit trees such as sweet cherries have to be grafted.
In an age of high-technology agriculture, grafting is a low-technology method that remains【C10】______important.
【C6】
选项
答案
N
解析
根据句子结构可知,此处应填入名词。根据文意可知,此处讲的是“接穗底部被切成字母V形”,所以[N]shape正确。
转载请注明原文地址:https://kaotiyun.com/show/DgPK777K
0
专业英语四级
相关试题推荐
Myuncleisquitewornoutfromyearsofhardwork.Heisnolongertheman______hewasfifteenyearsago.
InAmerica,olderpeoplerarelylivewiththeiradultchildren.Butinmanyothercultureschildrenareexpectedtocare【C1】____
WaterPollutionWaterpollutionisanundesirablechangeinthestateofwater,/pollutedwithharmfulsubstances./Itis
Rainforestsarecalledthelungsoftheplanet,becausetheyabsorbcarbondioxide,greenhousegas,andproduceoxygen,whichis
DozensofstudentsattheUniversityofMarylandhavetoiledinthephysicslab,somesoldering(焊接)metalparts,somecheckingso
TheInternationalMonetaryFund(IMF)isthemostpowerfulfinancialinstitutionontheplanet,capableofdictatingeconomicpoli
Takingondebtisoneofthemostimportanteconomicdecisionsapersoncanmake.Borrowingtoinvestineducationcanyieldal
AyearhaspassedsinceChile’s33trappedminerswerehauledtofreedomintheAtacamaDesert.Byandlarge,it’sbeenarelati
Mr.White,togetherwithallhiscolleagues,______forEuropethismorning.
AyearhaspassedsinceChile’s33trappedminerswerehauledtofreedomintheAtacamaDesert.Byandlarge,it’sbeenarelati
随机试题
在对火灾警报装置功能测试时,触发不同报警区域内两只独立的火灾探测器或一只火灾探测器与一只手动火灾报警按钮,或手动操作火灾报警控制器发出火灾报警信号,启动火灾警报装置。()
泰罗认为,科学管理的中心问题是()
下列甲状腺功能亢进症的治疗方法中,粒细胞减少多见于
我国《担保法解释》最新确立的担保类型是( )。
关于非法持有毒品罪,下列哪一选项是正确的?(2011年卷二第18题)
在35kV架空电力线路设计中,最低气温工况,应按下列哪种情况计算?()
三级处理是在一级处理、二级处理之后,进一步处理()。
CAD是计算机的主要应用领域,它的含义是()。
公安民警违法行使职权,侵犯公民人身自由的赔偿计算标准,每日赔偿金按照国家上年度职工()计算。
设f(x)连续可导,g(x)连续,且=0,又f’(x)=—2x2+∫0xg(x一t)dt,则().
最新回复
(
0
)