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
49
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
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingdamaged.Rainforestsarebeingquicklydestroyedasw
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingdamaged.Rainforestsarebeingquicklydestroyedasw
Bymodernstandards,thehostilesummitofMountLlullaillaco,intheArgentineAndes,isnoplaceforkids.TheancientIncasa
Bymodernstandards,thehostilesummitofMountLlullaillaco,intheArgentineAndes,isnoplaceforkids.TheancientIncasa
IntheFarEastinancienttimes,theumbrellawasallowedtobeusedonlybyroyaltyorbythoseinhighoffice.
Aweddingiscelebratedwithsomekindofceremonyalmosteverywhereintheworld.Theceremonyisdifferentamongdifferentnat
Aweddingiscelebratedwithsomekindofceremonyalmosteverywhereintheworld.Theceremonyisdifferentamongdifferentnat
随机试题
在西方行政管理学中,系统学派具有代表性的理论主要有()
Ithasbeenshownthatchildrenwhosmokehavecertaincharacteristics.Comparedwithnon-smokerstheyaremorerebellious,thei
患者,女,经产妇,39岁。1年来经量增多,经期持续4~14天。检查:子宫如孕3个月大小,凹凸不平,双附件无异常,血红蛋白90g/L,诊断为子宫肌瘤。恰当的处理为()。
女,24岁,入住新居后频繁咳嗽并气喘,查体肺部有哮鸣音,考虑病因为
ABC会计师事务所拟承接D集团财务报表审计业务。摹于集团财务报表审计目的,A注册会计师应当明确的目标包括()。
汉语的发展分为()。
唐宋八大家,在山水游记方面,以()的成就最为突出。
金针:刺绣
某航空公司的大型TU001抵达广州后,三名记者站在出口处采访刚下飞机的乘客:“您对刚乘坐的班机有什么不满意的地方吗”,只有15%的被采访者回答“有”。航空公司根据这一抽样调查,得出结论:至少有80%的乘客对他们乘坐的航空公司的班机服务是满意的。以下哪项如果
在幼儿言语发展中,消极词汇是指()。
最新回复
(
0
)