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
As concerns over man’s impact on the global environment increase, many interesting innovations are being considered. For example
As concerns over man’s impact on the global environment increase, many interesting innovations are being considered. For example
admin
2013-11-20
869
问题
As concerns over man’s impact on the global environment increase, many interesting innovations are being considered. For example, "green roofs" - plant-filled roof top gardens - are one substantial way to confront the country’s ecological problems, and there seems to be very little in the way of a downside. For one thing, a green roof acts as a sponge for rainwater, absorbing the majority of water from a typical rainstorm. Only three to five inches of soil for a green roof is sufficient for this to occur, which keeps the weight of the roof to a minimum. Because the plantings on the roof absorb the rainwater, drainage and sewage systems have a decreased volume of water pumping through them, keeping these systems from becoming over-stressed. And while the soil and plants are absorbing rainwater, they are also taking in pollutants for their own nourishment by storing carbon and then emitting necessary oxygen back into the atmosphere.
The author’s main point in the passage is that
选项
A、green roofs are expensive to install and maintain
B、green roofs are both innovative and eco-friendly
C、global warming concerns have led to many new inventions
D、plant-filled roof gardens emit oxygen into the atmosphere
E、green roofs are the definitive cure for global warming
答案
B
解析
The best answer is B. According to the passage, green roofs are an example of an interesting innovation that will help with our ecological problems. Therefore, choice B is the best answer. The remaining choices are either too specific or too broad.
转载请注明原文地址:https://kaotiyun.com/show/1AjO777K
本试题收录于:
GRE VERBAL题库GRE分类
0
GRE VERBAL
GRE
相关试题推荐
Thetsunami(海啸)______over160,000peoplewerekilledwasaterribledisasterforhumanbeings.
DuringatriptoobservewildanimalsinAfrica,Iencounteredtheleastbraveanimalonearth,thewildebeest(角马).Isatona
Everyday______wateriswastedherethoughwearebadlyshortofit.
Computertechnologyisadvancingsofastthatoldhardwarequicklybecomescompletelyobsolete.Theelectronicwaster(e-waste)
Robertissaid_________abroad,butIdon’tknowwhatcountryhestudiedin.
Thesecrettoeatinglessandbeinghappyaboutitmayhavebeencrackedyearsagoby—Mcdonald’s.Accordingtoanewstudyfrom
__________coffeeiscoffeethatyoucanprepareveryquickly,forexamplebyjustaddinghotwater.
Inaclassof80people,Mary’spercentileis90%.Inanotherclassof100people,19people’spercentileisgreaterthanMary’s
MudfromalakeonanuninhabitedwoodedislandinnorthernLakeSuperiorcontainstoxicchemicals,includingtoxaphene,abanne
InRembrandt’sday,manyofhisfellowpaintersportrayedtheircharactersmuchliketheidealizedgodsofGreekandRomanmytho
随机试题
方程x2+y2=4x在空间直角坐标系中表示()。
诊断急性心肌梗死特异性和敏感性最高的酶是
体表属阳,体内属阴,筋骨为
下列权利类型中,不属于无形资产使用权转让形式的是()。
某有限责任公司设董事会和监事会,该公司中有权提议召开临时股东会的是()。
运用社会形态发展的统一性和多样性及其相互关系的原理,说明建设有中国特色社会主义的科学性。
(1998年)
在计算机中,最适合进行数字加减运算的数字编码是(2)。
Ifyouseehim,pleasegivemyapologies______nothavingwrittentohim.
Theycallthemthenewbreadearners.Theyarewomen,andtheyaresettotakeover.Womenarebeginningtorise【S1】______to
最新回复
(
0
)