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
2023-07-18
25
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] 【S1】
选项
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2847430.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
Youshouldspendabout20minutesonQuestions1-13,whicharebasedonReading
简述常用的社区护理质量管理评价指标。
以下关于总线的说法中,正确的是()。A.串行总线适合近距离高速数据传输,但线间
一名家属带外地患者来医院就诊,为省钱要求用自己的医保卡为外地患者开药,作为接诊医
猩红热的临床表现,下列错误的是?( )A.初起发热,咽喉红肿糜烂 B.发热数
呃逆的病位与下列哪项无关A.心 B.胃 C.肺 D.肝 E.肾
孕激素生理作用不正确的是A:使基础体温升高0.3~0.5℃ B:加强输卵管肌节
引河水灌大梁以取得攻魏胜利的秦国大将是( )A.白起 B.王贲 C.王翦
下列要素关系到项目和生产物资能否顺利集聚、供应,以及产品能否顺利分销的是()A:
劳动合同期限内,甲公司的职工王某正好处在孕期,但甲公司提出解除劳动合同。根据劳动
最新回复
(
0
)