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
36
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
Youshouldspendabout20minutesonQuestions27-40,whicharebasedonReading
Whenyoungcollegegraduatesdecidewheretomove,theyarenotjustlooking
AccordingtotheUNHumanDevelopmentReport,whichisthebestplaceforwomen
Whendidtheaccidenthappen?______.[br]Whatwerethetwoboats?Onewa
对于可能造成报警管路误报警的原因,维修方法有()。A.按照安装图纸核对报警阀组组
Governmentreports,examinationcomposit
下列人员中,可以由委任制产生的是( )。 A.国务委员 B.外交部副部长
Thearchitectureisharmoniousandnobu
关于架空线路绝缘子污闪电压的结论,下列哪些叙述是正确的?( )A.绝缘子污闪电
男,18岁。急起四肢无力,进行性加重。病前有腹泻病史。查体:四肢肌力3级。最可能
最新回复
(
0
)