首页
登录
职称英语
To call something "marginal" means it is not very good. Farmers have their o
To call something "marginal" means it is not very good. Farmers have their o
游客
2024-02-22
21
管理
问题
To call something "marginal" means it is not very good. Farmers have their own way to【47】marginal land: It is the last to be planted under good conditions, and has the【48】to be avoided under poor conditions. Low【49】soil is not the only reason land could be considered marginal. It might be in an area where rainfall is【50】or where a hillside might rise too steeply(陡峭地).
There are uses for marginal land, however. Most often it is used as grassland. Grasses provide excellent【51】for grazing (吃草) animals like cattle, sheep and goats. Grass seed can be bought from a foreign supplier or【52】grasses can be used. However, using marginal land for grazing is not a simple issue. There is a【53】of overgrazing. Cattle can damage the crops by eating down to the roots. Also, the weight of the animals crushes the soft and can make it too hard for growing. A(n)【54】way to reduce the harm is to move animals from one field to another. This method is known as rotational grazing (循环放牧) which is extremely important for marginal land.
Another use for marginal land is for tree crops. Studies have【55】that the white pine and loblolly pine (火炬松) are two kinds of trees that grow well on such land. They grow fast and provide good quality wood. Another tree is the poplar (白杨), found in many parts of the world.
Failure to take the care needed to protect marginal lands can make a bad situation worse. But good planning can 56 a marginal resource into a highly productive one.
A) feed B) priority C) transplant D) effective
E) limited F) define G) adequate H) transform
I) discouraging J) quality K) native L) revealed
M) prejudice N) hazard O) recovered [br]
选项
答案
B
解析
此处需要填入一个名词或动名词,可选范围缩小到A、B、C、I、J、K、M和N,根据前半句the last to be planted under good conditions以及整个句子的结构可知,前半句和后半句是一个比较工整类似排比或对比的结构,故正确答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3472966.html
相关试题推荐
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
Astheplanecircledovertheairport,everyonesensedthatsomethingwaswr
随机试题
诊断0~2岁的小儿反复呼吸道感染,其中1年上呼吸道感染的次数是A.5 B.6
A.全当归B.当归尾C.酒当归D.土炒当归E.当归炭长于活血补血调经的是()。
A.具有正性肌力及减慢心率作用 B.扩张小动脉和小静脉 C.阻碍钠、钾、氯化
下边哪个图形能由上边的三个图形拼合(只能通过上、下、左、右平移)而成,请把它找出
把下面六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项是:
根据《建设工程监理规范和规模标准规定》,下列工程项目中,必须实行监理的是( )
自然垄断与()有着密切的关系。A.国家法令 B.自然资源 C.规
某工程,实施过程中发生如下事件: 事件1:工程开工前,施工单位向项目监理机构报
为了控制物资供应进度,监理工程师协助业主进行物资供应决策的工作内容包括( )。A
再生是指() A.纤维细胞数目的增多 B.纤维组织增生的过程 C.肉芽组织
最新回复
(
0
)