首页
登录
职称英语
We often think of agriculture as planting seeds and harvesting crops. But many c
We often think of agriculture as planting seeds and harvesting crops. But many c
游客
2024-02-19
62
管理
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【S1】______cut from existing trees and plants. This is called grafting(嫁接) .
Farmers cut branches or young growths, called【S2】______, 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【S3】______the graft is called the root stock. Over time, the【S4】______from the two plants grow together, the grafted plant begins to【S5】______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【S6】______of the letter V. A place is cut in the root stock to accept the scion. The scion is then【S7】______placed into the cut on the root stock. Growth medium is put on the【S8】______to keep it wet and help the growth.
Grafting can join scions with【S9】______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 hightechnology agriculture, grafting is a lowtechnology method that remains【S10】______important.
A blossoms B pieces C composes D parts
E securely F extremely G buds H agreeable
I accepts J firmly K grow L desirable M produce N shape O join [br] 【S9】
选项
答案
L
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3463702.html
相关试题推荐
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
随机试题
HowtoAssessaGraduateSchoolGeneralcriteriatofollowincho
[originaltext]W:Oh,whatanuisance!M:Hey,Julia.What’sthematter?Youdon
Theriseofmultinationalcorporations(跨国公司),globalmarketing,newcommuni
未决赔款准备金是指保险人对在保险有效期内发生的未决赔款从当期保费收入中提存的资金
下列医德基本原则不包括:A.尊重原则 B.不伤害原则 C.有利原则 D.公
引起白蛋白/球蛋白(A/G)降低的疾病是()A.肾上腺皮质功能减退症
按照现行规定,工程建设过程中建设单位扣留每期工程进度款的( )作为工程质量保证金
4个杯子上各写著一句话,第一个杯子:每个杯子中都是酸性溶液,第二个杯子:本杯中是
()对出勤率没有苛刻的要求。A.推销员 B.门岗门卫 C.经理 D.后台
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
最新回复
(
0
)