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
【C2】
选项
答案
G
解析
转载请注明原文地址:https://kaotiyun.com/show/qbJ7777K
0
大学英语六级
相关试题推荐
SmotherLove[A]Everymorning,LeanneBricklandandhersisterwouldbicycletoschoolwiththesamewordsringingintheir
Oncetheydecidedtohavechildren,MiShelandCarlMeissnertackledthenextbigissue:Shouldtheytrytohaveagirl?Itwas
BargainbookshoppersmusthavebeenpleasedlookingatAmazon’sbestsellerlistthisweekend:Theonlinebooksellerhaddropped
NowomancanbetoorichortoothinThissayingoftenattributedtothelateDuchess(公爵夫人)ofWindsorembodiesmuchoftheodds
Googlemustbethemostambitiouscompanyintheworld.Itsstatedgoal,"toorganizetheworld’sinformationandmakeitunive
Takingchargeofyourselfinvolvesputtingtorestsomeveryprevalentmyths.Atthetopofthelististhenotionthatintellig
Takingchargeofyourselfinvolvesputtingtorestsomeveryprevalentmyths.Atthetopofthelististhenotionthatintellig
中国银行是中国历史最悠久的商业银行之一,成立于1912年。新中国成立后,中国银行成为国家外汇(foreignexchange)专业银行,承担外汇经营管理工作,为中国对外贸易发展和国家经济建设做出了重大贡献。2008年,作为北京奥运会和残奥会(Paraly
民间禁忌(folktaboo)是人类社会普遍存在的文化现象。在中国,饮食、婚嫁、居住、社交等方面都有禁忌。有些禁忌有利于人际交往,应该提倡和发扬。比如,在宴席上,主人不能先于客人吃饭,而客人也不能未请先动。而有些禁忌是迷信的,迷惑了人的思想、束缚了人的行
随机试题
行走于桡骨茎突桡侧腱鞘内的肌腱有
俄国文学史上第一位抒情诗人是___________。
陆游《关山月》:_________,厩马肥死弓断弦。
患者男,9岁。因“发现双颈部包块1个月余”入院。患儿近1个月来双颈部包块,进行性增大,以左侧为甚,无发热、咳嗽、胸闷、腹痛、乏力、消瘦、盗汗等症状。入院查胸片,肝脾B超均未见异常,颈部淋巴结活检病理报告:霍奇金病(淋巴细胞为主型),骨髓活检示幼稚淋巴细胞占
换热设备结构简单,制造方便,易于检修清洗,适用于温差较大、腐蚀性严重的场合的换热器为()。
一般说来,学习动机并不是通过直接进入认知建构过程,而是通过某些中介对学习产生作用的,影响认知建构过程的中介有()。
一个班有50名学生,他们的名字都是由2个或3个字组成的。将他们平均分为两组之后,两组的学生名字字数之差为10。此时两组学生巾名字字数为2的学生数量之差为:
法兰西第三共和国
简述《中华民国临时政府组织大纲》的特点和历史意义。
Thespeaker’s______answerledtoanoutcryformtheOpposition.
最新回复
(
0
)