首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
财经
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is
admin
2013-04-04
105
问题
Trees should only be pruned(修剪)when there is a good and clear reason for doing so and,fortunately,the number of such reasons is small.Pruning involves cutting away of overgrown and unwanted branches,and the inexperienced gardener can be encouraged bv the thought that more damage results from doing it unnecessarily than from leaving the trees to grow in their own ways.
First,pruning may be done to make sure that trees have a desired shape or size.The object may be to get a tree of the right height,and at the same time to help the growth of smail side branches which will thicken its appearance or give it a special shape.Secondly,pruning may be done to make the tree healthier. You may cut out diseased or dead wood,or branches that are rubbing against each other and thus causing wounds.The heahh of a tree mav be encouraged by removing the branches that are locking up the centre and SO preventing the free movement of air.
One result of pruning is that an open wound is left on the tree and this provides an easv entry for diseases,but it is a wound that will heal(愈合).Often there is a race between the healing and the disease as to whether the tree will live or die,or that there is a Deriod when the tree is at risk. It should be the aim of every gardener to reduce the risk as far as possible.It is essential tO make the area which has been pruned smooth and clean,for healing will be。slowed down by roughness. You should allow the cut surface to dry for a few hours and then paint it with one of the substances available from garden shops produced especially for this purpose.Pruning is usually done in winter,for then you can see the shaPe of the tree clearlv without the interference(~)from the leaves and it is,too,very unlikely that the cuts you make will bleed.If this does happen,it is,of course,impossible to paint them properly.
Why is a special material painted on the tree?
选项
A、Because it can help a wound to dry.
B、Because it can cover a rough surface.
C、Because it can make a wound smooth.
D、Because it can prevent disease entering a wound.
答案
D
解析
第三段的第一句就指出剪枝后的伤口容易染病,下文中又提到让伤口快点愈合的方法就是让伤口晾干几个小时,然后涂上一种专门用于此用途的物质。由此可知D项符合题意。
转载请注明原文地址:https://kaotiyun.com/show/7bgc777K
本试题收录于:
英语题库银行系统招聘考试分类
0
英语
银行系统招聘考试
相关试题推荐
小张、小王两人同时从甲地出发,驾车匀速在甲、乙两地之间往返行驶。小张的车速比小王快,两人出发后第一次和第二次相遇都在同一地点,问小张的车速是小王的几倍?()
二级市场的组织形态有两种,一种是交易所,证券的买主和卖主或是其代理人在交易所的一个中心地点见面并进行交易,另一种交易形式是()。
Thepolicefiredteargasandarrestedmorethan5,000passivelyresistingprotestorsFridayinanattempttobreakupthelarge
Withonlyaboutl,000pandasleftintheworld,Chinaisdesperatelytryingtoclonetheanimalandsavetheendangeredspecies.T
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemicalchangesoccurinthebrainthatallowittoactm
Mr.Wanggaveallthetextbookstoallthestudents,except_________whohadalreadytakenthem.
OneFriday,wewerepackingtoleaveforaweekendaway______mydaughterhearedcriesforhelp.
Itisreasonableforpeopletopursueacareerinfieldsrelate______theirfavoritehobbies.
Exerciseisoneofthefewfactorswithapositiveroleinlong-termmaintenanceofbodyweight.Unfortunately,thatmessagehas
SEACLOUDINVESTMENTSAmemberofthe"lifeforliving"groupPlanningforacreativeret
随机试题
直流放大器主要放大直流信号,但也能放大交流信号。()
治疗先天性甲状腺功能减低症的主要药物是
如图所示,水平河床上有一溢流水坝,坝段长为L,通过流量为Q时,坝上游水深为H,溢流水坝下游收缩断面水深为hc,求水流对坝体的作用力。应用动量方程来求解这一问题时,下面的求解过程中,错误的是()。
在施工过程中,工程师发现曾检验合格的工程部位仍存在施工质量问题,则修复该部位工程质量缺陷时应由()。
【真题(初级)】公司采用较高的信用标准,将会导致的结果是()。
著作权转让合同中著作权人未明确转让的权利,未经著作权人同意,另一方当事人不得行使。()
中国四大佛教名山是()。
()是围家统一实施的所有适龄儿童、少年必须接受的教育,是国家必须予以保障的公益性事业。
我在一些卓越的评论家的著作中读到过这么一种观点,说托尔斯泰的思想精髓是源于法国的浪漫主义作家乔治·桑、维克多·雨果。且不说认为托尔斯泰是受乔治·桑影响的这种看法之不可信,也不必去否认让·雅克·卢梭和司汤达对他的实际影响之大,反正怀疑他的伟大和魅力是源自他的
A.WushuschoolshavedevelopedquicklyB.WushuhasaverydeepbasefromthemassesC.ItcanstrengthenphysicalhealthA:I’vea
最新回复
(
0
)