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
We often think of agriculture as planting seeds and harvesting crops. But many crops do not come from seeds. Many kinds of trees
We often think of agriculture as planting seeds and harvesting crops. But many crops do not come from seeds. Many kinds of trees
admin
2021-04-22
24
问题
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.
A) blossoms
B) pieces
C) composes
D) parts
E) securely
F) extremely
G) buds
H) agreeable
I) accepts
J) relatively
K) grow
L) desirable
M) produce
N) shape
O) joint
【C9】
选项
答案
L
解析
转载请注明原文地址:https://kaotiyun.com/show/rbJ7777K
0
大学英语六级
相关试题推荐
Whilethemissionofpublicschoolshasexpandedbeyondeducationtoincludesocialsupportandextra-curricularactivities,the
America’smostpopularnewspaperwebsitetodayannouncedthattheeraoffreeonlinejournalismisdrawingtoaclose.TheNewY
ThreeEnglishdictionariespublishedrecentlyalllayclaimtopossessinga"new"feature.TheBBCEnglishDictionarycontainsb
Theperiodofadolescence,i.e.,theperiodbetweenchildhoodandadulthood,maybelongorshort,dependingonsocialexpectati
Forthispart,youareallowed30minutestowriteanessayontechnologyandstudy.Youressayshouldfocusontheeffectsoft
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNational
Depressionisoneofthedarkdemons(恶魔)ofadolescence.Upto1in12Americanteenagersisaffected,accordingtotheNational
I’lladmitI’veneverquiteunderstoodtheobsession(难以破除的成见)surroundinggeneticallymodified(GM)crops.Toenvironmentalist
随机试题
目前使用的硬磁盘,在其读/写寻址过程中()。
简述幼儿园语言教育的组织形式。
下列选项中,不属于电子商务的特点的是()
一位患者目剧痛,连及头痛,恶心呕吐,最后查看瞳孔后,诊断为绿风内障,此患者瞳孔应是
患者,男性,53岁,公司经理。吸烟15年,每天2包,体重75kg,身高164cm。从临床预防心血管疾病的角度讲应该检查()
人体实验中应把什么放在首位
治疗缺铁性贫血最重要的是( )
请为下面的新闻拟写标题。(不超过12字)北京时间2005年1月18日3时16分,中国第21次南极冰盖昆仑科学考察队12名队员成功抵达南极内陆冰盖的最高点。鲜艳的五星红旗高高地飘扬在蓝天之下。这是人类首次登上南极内陆冰盖之巅。
关于IP协议的描述中,错误的是()。
Sincethiswouldmakesoftwarecheaper,orevenfree,consumersmightbewillingtolivewiththebargain.
最新回复
(
0
)