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
外语
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and
admin
2014-02-22
61
问题
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and North Carolina, this broad system covers more than 1, 200 miles to form the rocky backbone of the eastern United States.
The Blue Ridge Mountains form a substantial part, 615 miles, of the far-reaching Appalachians. They begin as a narrow, low ridge in Pennsylvania, then slowly spread and rise until they reach the height of 5, 938 feet at majestic Grandfather Mountain in North Carolina. The Blue Ridge technically includes among its major spurs the Great Smoky Mountains and the Black Mountains; Mount Mitchell, in the latter range, is at 6, 684 feet the highest peak east of the Mississippi River. Like the rest of the Appalachians, these mountains were once substantially higher and bolder. Their uplift was completed some 289 million years ago, and they have been drastically eroded ever since. At one time, immense continental glaciers covered the land as far south as Pennsylvania. Although they did not spread over the Blue Ridge, plants and animals far beyond their reach became adapted to the cold. When the climate warmed and the ice melted, the cold-adapted species retreated northward, surviving in the south only at higher, cooler elevations.
Red Spruces and Fraser firs are remnants of the Ice Age, thriving in the higher elevations of the Blue Ridge; and local belches, birches, and red oaks are typical of forests farther to the north. Sharing the high peaks is another distinctive plant community. This is the "bald" — a treeless area covered with grass, or more commonly, with broad-leaved shrubs. Often large and vigorous, the latter include huckleberries, mountain laurel, and most especially, rhododendron, an evergreen shrub that blossoms in June and creates some of the most spectacular wild gardens on Earth.
According to the passage, a 615-mile expanse of the Appalachians is known as______.
选项
A、the Blue Ridge Mountains
B、Grandfather Mountain
C、the Black Mountains
D、the Great Smoky Mountains
答案
A
解析
细节事实题。根据题干关键词615一mile定位到原文第二段首句。原句中的Blue Ridge Mountains与选项A重现。故答案为A。
转载请注明原文地址:https://kaotiyun.com/show/LHQO777K
0
考博英语
相关试题推荐
Therolesofadmissionintothe,worldeconomynotonlyreflectlittleawarenessofdevelopingpriorities,theyareoftencomple
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
InEngland,alongastretchofthenorth-eastcoastwhichgentlycurvesfromNorthumberlandtothemouthoftheriverTees,ther
InEnglandalongastretchofthenorth-easecoastwhichgentlycurvesfromNorthumberlandtotheestuaryoftheriverTees,the
(1)TheChinese,fromthehighesttothelowest,haveanimperturbablequietdignity,whichisusuallynotdestroyedevenbyaEu
(1)TheChinese,fromthehighesttothelowest,haveanimperturbablequietdignity,whichisusuallynotdestroyedevenbyaEu
(1)TheChinese,fromthehighesttothelowest,haveanimperturbablequietdignity,whichisusuallynotdestroyedevenbyaEu
随机试题
下列关于X线物理特征的叙述,正确的是
项目实施策划在项目()完成,为项目管理服务。
以下不是围绕项日的必要性进行分析研究的是()。
关于家装施工现场用电的说法,正确的有()。
甲公司2009年初的所有者权益总额为3125万元,2009年亏损175万元,2010年亏损75万元,2011年到2013年的税前利润每年均为0,2014年公司实现税前利润750万元。公司章程规定,法定盈余公积和任意盈余公积的提取比例均为10%。公司董事会提
有关资源的配置,下列说法正确的是()。
佩德罗二世(2013年历史学统考真题)
2007年2月,胡锦涛主席在与苏丹总统巴希尔的会谈中提出,处理达尔富尔问题应该
设f(x)与g(x)互为反函数,且F(x)是f(x)的一个原函数,G(x)是g(x)的一个原函数,则下列各式中不正确的是().
StrategicallysituatedinShanghai’smostprosperousandwellconnectedcentralbusinessdistricts,theVXCenteristhepremier
最新回复
(
0
)