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
4
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] 【D6】
选项
答案
O
解析
根据句子结构可知,空格前为定冠词the,此处应填入名词。根据句意可推知,此处讲的是接穗底部被切成字母V形,所以O)shape为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3701004.html
相关试题推荐
Americandesertsaresometimesquitegreen.________,theycannotsupportcrops.A
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butman
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
NewZealandisfamousforitsagriculture.Mostoftheexportscomefromthe
随机试题
Thefollowingisaninstructionofwritingatripreport.Afterreadingit,you
WhilenowomanhasbeenPresidentoftheUnitedStates,yettheworlddoeshave
企业联盟的主要形式是( )。A.技术联盟 B.产品联盟 C.行业标准联盟
A.气逆证 B.气滞证 C.气陷证 D.气虚证 E.气脱证脏腑功能低下或
适用于湿粒性物料干燥,干燥时成沸腾状A.鼓式干燥 B.沸腾干燥 C.真空干燥
A. B. C.xdx D.
永安市人民政府土地管理部门欲出让一块位于该市北区的农民集体所有的土地,华天房地产
(2018年真题)某公司为扩大业务范围,在上海证券交易所通过发行债券的方式筹集资
下列因素中,能够对员工的情感承诺产生明显影响的是( )。A.工作的挑战性 B
下列关于项目经理的说法中,表述正确的是()。A.项目经理可能在工程管理部或项目管
最新回复
(
0
)