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
39
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] 【S2】
选项
答案
G
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3463695.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
Becausehedidn’twantto______inhisrowagain.[originaltext]Whydidhestan
[originaltext]Twenty-fiveyearsago,RayAnderson,asingleparentwithao
A.e B.2e C.0 D.1
桥梁工程图主要由()组成。A.桥位平面图 B.桥位地质断面图 C.桥位立面
患儿,5个月。急性腹泻,频繁呕吐2天,检查头颅,可能发现的体征是( )。A.囟
下列描述正确的是( )。A.教师教的本质在于主导教学。是教学中的执行者 B.
()主要包括限制进口、财政补贴、减免税等。A:对增长企业的促进政策B:对衰退产
按照衔接运输方式的多少,可将运输枢纽分为()A.开放式运输枢纽 B.封闭式运输
以下关于防坠、防砸的安全规定错误的是()。A.天井、溜井、漏斗口等处必须设置标志
男性,58岁,慢性咳嗽,咳痰10年余,测VC为预计值的85%,FEV1/FVC为
最新回复
(
0
)