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
专升本
A national political struggle is continuing over the issue of protection for the remnants(残余)of vast ancient forests that once c
A national political struggle is continuing over the issue of protection for the remnants(残余)of vast ancient forests that once c
admin
2015-07-21
27
问题
A national political struggle is continuing over the issue of protection for the remnants(残余)of vast ancient forests that once covered the northwestern areas of the United States. These old forests, called "old growth", contain trees from 200 to 1200 years old. There are now about 6 million acres of virgin(原始的)forest on Washington and Oregon, only about one-tenth of what existed before the 1880s. This low growth contains some of the most valuable timber in the nation, but its economic worth is also contained in its water, wildlife, scenery, and recreational facilities.
Conservationists want the majority of existing old growth protected from harvesting. They emphasize the vital relationship between old growth and the health of the forest’ s ecosystem(生态系统). They cite studies which show that both downed and standing old trees store and release nutrients necessary to younger trees.
On the other hand, much of the Northwest’s economy is developed around the logging(伐木)industry. Trees are cut down to make wood products, and many mills are geared(开动)for old-growth industry. In recent years, 500 acres of old growth have been logged, including trees up to 500 years old and eight feet in diameter. While the U. S. Forest Service wrestles(全力对付)with the problem of how much of the forest to save, the harvesting of timber continues. The district office refuses to remove any of the old growth from timber production. The struggle is continuing at the national level with strong proponents on both sides.
Before the 1800s______.
选项
A、there were six million trees
B、old-growth trees were not cut down
C、the trees had more economic value
D、there were more virgin forests
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/aFTC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
WelcometotheNationalMaritime(海洋的)MuseumTheNationalMaritimeMuseumisthelargestofitskindintheworld,withove
Internationalstudentscan’tworkwhiletheyarestudyingintheU.S.,sotheymustshowschoolsthattheyhaveenoughmoneyfor
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingdamaged.Rainforestsarebeingquicklydestroyedasw
Bymodernstandards,thehostilesummitofMountLlullaillaco,intheArgentineAndes,isnoplaceforkids.TheancientIncasa
IntheFarEastinancienttimes,theumbrellawasallowedtobeusedonlybyroyaltyorbythoseinhighoffice.
ChallengesDirections:WriteacompositiononthetopicChallenges.Rememberyourcompositionshouldbebasedontheoutlinegiv
ASmileoraFrown?Directions:WriteacompositiononthetopicASmileoraFrown?Rememberyourcompositionshouldbebasedo
Aweddingiscelebratedwithsomekindofceremonyalmosteverywhereintheworld.Theceremonyisdifferentamongdifferentnat
Aweddingiscelebratedwithsomekindofceremonyalmosteverywhereintheworld.Theceremonyisdifferentamongdifferentnat
随机试题
简析《透明的红萝卜》中黑孩形象的意义。
(horrify)Wewere________bywhatwesaw.
对年老、体弱的慢性阻塞性肺气肿患者的治疗中不恰当的是
对药物毒性反应叙述正确的是
一、二级汽车客运站用电负荷应按一级要求供电。()
关于和解的说法,错误的是( )。
一种分期付息的债券.当投资者要求的收益率高于债券票面利率时,债券的市场价值会低于债券面值;当投资者要求的收益率低于债券票面利率时,债券的市场价值会高于债券面值。()
游客要求自费品尝风味餐,导游员应当()。
掌握若干概念之间关系的学习称为【】
从广义上讲,凡是有意识地形成或改善他人思想品德的主体都是()。
最新回复
(
0
)