首页
登录
职称英语
We often think of agriculture as planting seeds and harvesting crops. But man
We often think of agriculture as planting seeds and harvesting crops. But man
游客
2024-08-01
10
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【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 [br] 【D1】
选项
答案
L
解析
根据句子结构可知,空格前为介词from,空格后为后置定语,此处应填入名词。此处句意为,许多树木和作物都是从已有树木和作物上切下的______长成的。切下的肯定是切片,故选L)pieces。
转载请注明原文地址:https://tihaiku.com/zcyy/3700999.html
相关试题推荐
Americandesertsaresometimesquitegreen.________,theycannotsupportcrops.A
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
随机试题
[originaltext]W:Hi,Mike.M:Hi.I’msurprisedtoseeyouonthecitybus.Why
"Iwanttocriticizethesocialsystem,andtoshowitatwork,atitsmost
OnepertinentquestioninthewakeoftheearthquakenearAceh(亚齐省)andthe
涵管敷设与涵身砌筑施工中,如果图纸有规定,在管节接缝填塞好后,应在其外部设置(
放射性I治疗甲亢的作用机制是A.抑制自身免疫反应 B.抑制甲状腺素的活性 C
肘关节侧位摄影,叙述错误的是A.肘关节弯曲呈90°角 B.尺侧靠近台面 C.
第一个用于临床的广谱半合成青霉素是A:苯唑西林钠 B:青霉素G钠 C:氨苄西
个人理财业务的相关主体包括()。A.个人客户 B.商业银行
我国外汇管理交易中心的人民币兑美元外汇掉期期限包括()。A.1月 B
动力式压缩机按结构形式和工作原理可分为( )。A.轴流式压缩机 B.容积式压
最新回复
(
0
)