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
2019-03-10
99
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【D1】______cut from existing trees and plants. This is called grafting (嫁接).
Farmers cut branches or young growths, called【D2】______, 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【D3】______the graft is called the rootstock. Over time, the【D4】______from the two plants grow together. The grafted plant begins to【D5】______the leaves and fruit of the scion, not the rootstock.
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【D6】______of the letter V. A place is cut in the rootstock to accept the scion. The scion is then【D7】______placed into the cut on the rootstock. Growth medium is put on the【D8】______to keep it wet and help the growth.
Grafting can join scions with【D9】______qualities to the rootstock 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【D10】______important.
A) accepts F) desirable K) parts
B) agreeable G) extremely L) pieces
C) blossoms H) gradually M) produce
D) buds I) grow N) securely
E) composes J) joint O) shape
【D7】
选项
答案
N
解析
本句主干结构完整,因此应填入一个副词修饰placed。此处讲的是将接穗怎样插入砧木上的切口中。结合备选副词可知,应该是“牢靠地,紧紧地”插入,以免其掉落,故选N)securely。
转载请注明原文地址:https://kaotiyun.com/show/EM5K777K
本试题收录于:
浙江省大学英语三级题库大学英语三级分类
0
浙江省大学英语三级
大学英语三级
相关试题推荐
Thereisprobablynolimittowhatsciencecandointhewayofincreasingpositiveexcellence.(76)Healthhasalreadybeengrea
Thetechniquesofsalespromotionareusedbothtomotivatesalespersonstoimprovetheirperformanceandtoinduceconsumersto
Thetechniquesofsalespromotionareusedbothtomotivatesalespersonstoimprovetheirperformanceandtoinduceconsumersto
Tourismhelpspeopletodevelopavarietyofskills.Asaservicesectorwithcross-cuttingimpactonagriculture,construction
A、Adviceonplantingroses.B、Howtochooseroses.C、Differenttypesofroses.D、Howtowaterroses.A短文开篇提到,有人说玫瑰很难种植,但讲话者说如果从一
A、Growmorecrops.B、Buyfoodfromothers.C、Selltheanimalstobuycrops.D、Developnewagriculturaltechnologies.A对话开始部分,男士说
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanycropsdonotcomefromseeds.Manykindsoftrees
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanycropsdonotcomefromseeds.Manykindsoftrees
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanycropsdonotcomefromseeds.Manykindsoftrees
随机试题
关于定期考核结果的反馈,我国《公务员法》规定
患者女,23岁,下楼时不小心扭伤踝关节,局部疼痛、肿胀、青紫,来院就诊。护士明白此时应采取
甲欠乙10万元钱,已届清偿期,但甲无钱向乙进行偿还,并作出一系列的行为,对甲的行为乙有权行使撤销权的有哪些?()
在项目实施准备阶段,投资目标计划值和实际值比较不包括()。
经济分析是()履行对拟建项目的外部性管理职能的重要依据。
12月份采取“以旧换新”方式销售货物应征消费税为( )。该公司12月份应纳消费税为( )。
下面各类型的存款免缴储蓄存款利息所得税的是()。
领队在查验游客的证件、签证及机票时,应着重对()进行检查。
闲置资源(IdleResources)
Centralbankindependencehastodowithmonetarypolicy’seffectsintheshotrunandthelongrun.Intheshortrun,an"【21】"
最新回复
(
0
)