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
考研
A. help maintain environmental quality B. as people clear lands C. depends on countless interactions D. by overfishing and by po
A. help maintain environmental quality B. as people clear lands C. depends on countless interactions D. by overfishing and by po
admin
2016-11-07
54
问题
A. help maintain environmental quality
B. as people clear lands
C. depends on countless interactions
D. by overfishing and by pollution Phrases:
A.【T13】________for homes and farms and cut wood for fuel
B. They also【T14】________by breaking down or removing some pollutants
C. fish supplies have been greatly reduced【T15】________
D. 【T16】________among plants, animals, and microorganisms
Wildlife plays a vital role in the biological processes that are essential to life itself. The functioning of the biosphere, and hence the maintenance of human life,【T17】________These processes are essential for agriculture, fisheries, and other efforts necessary to human life. 【T18】________and by preventing the pile-up of waste. Some of the biological processes in which wildlife is involved are seed scattering, soil generation, nutrient cycling and pest control.
No discussion of threats to wildlife is complete without an examination of the causes, which are human needs. In Africa, forests are shrinking 【T19】________Sheep eat the vegetation, leaving the bare soil to be carried away by wind and water. Humans kill wildlife for the illegal trade in furs. The loss of forests is destructive to many species and plants. Beyond that, in the oceans, 【T20】________.
【T18】
选项
A、
B、
C、
D、
答案
B
解析
本题前句讲的是生物圈的功能及重要性,所以后面接着也可以维持环境质量。故选B。
转载请注明原文地址:https://www.kaotiyun.com/show/s1Li777K
0
在职申硕(同等学力)英语
相关试题推荐
Someofthesestudies(haveshown)thatalthoughsomepeoplehavetrouble(tofallasleep),othershavean(equally)difficultt
TheSecurityCouncilisthemostpowerfulbodyintheUN.Itisresponsibleformaintaininginternationalpeace,andforrestori
TheSecurityCouncilisthemostpowerfulbodyintheUN.Itisresponsibleformaintaininginternationalpeace,andforrestori
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirworktheymustreadletters,reports,tradepublication
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Thereisnoquestionthattheoldstyleofairpollutioncouldkillpeople.Inoneweekfollowingtheinfamous"peasouper"fogi
Areportpublishedrecentlybringsbadnewsaboutairpollution.Itsuggeststhatitcouldbeasdamagingtoourhealthasexpos
Areportpublishedrecentlybringsbadnewsaboutairpollution.Itsuggeststhatitcouldbeasdamagingtoourhealthasexpos
随机试题
下列常用的搜索引擎有()。
结肠癌最早出现的临床症状是
根据公司法律制度的规定,下列有关有限责任公司股东出资方式的表述中,正确的有()。
在财务报表审计中,()是注册会计师的责任。
所有者权益是企业投资人对企业净资产的要求权,在数量上所有者权益等于()。
银行业金融机构违反审慎经营规则的,国务院银行业监督管理机构可以采取的措施不包括()。
国外专家认为,绩效管理主要由()组成。
小玲是某商品房社区的居民,对于业主大会作出的管理规约,她认为侵害了自己的合法权益,她可以请求()予以撤销。
十二届全国人大常委会第七次会议经表决通过决定,将12月13日确定为南京大屠杀死难者国家公祭日。
高某无证经营被区工商局罚款300元,高某不服申请复议,复议机关市工商局决定罚款600元,后经确认,区工商局所作的罚款行政处罚违反法律,下列说法正确的是()。
最新回复
(
0
)