首页
登录
职称英语
Air pollution involves the release into the atmosphere【C1】______ gases, fi
Air pollution involves the release into the atmosphere【C1】______ gases, fi
游客
2024-10-29
35
管理
问题
Air pollution involves the release into the atmosphere【C1】______ gases, finely divided solids, or finely dispersed liquid aerosols at rates that【C2】______ the capacity of the atmosphere to dissipate them or to dispose【C3】______ them through incorporation into solid or【C4】______ layers of the biosphere. Air pollution【C5】______ a variety of causes, not all of which are【C6】______ human control. Dust storms in desert areas and smoke from forest and grass fires【C7】______ to chemical and particulate pollution of the air. Forest fires that swept the state of Victoria, in Australia, in 1939 caused【C8】______ air pollution in Queensland, more than 2,000 miles (3,000 kilometres) away. Dust blown from the Sahara has been【C9】______ in West Indian islands. The discovery of 【C10】______ in Antarctica, where they have never been used, suggests the【C11】______ to which aerial transport can carry pollutants from one place to another. Probably the most important natural【C12】______ of air pollution is volcanic activity , which at times【C13】______ great amounts of ash and toxic【C14】______ into the atmosphere. The eruptions of such volcanoes as Krakatoa, in the East Indies, Mt. St. Helens, in Washington, and Katmai, in Alaska, have been 【C15】______ to 【C16】______ climatic changes.
Air pollution may affect humans directly, causing a smarting of the【C17】______ or coughing. More indirectly, the effects of air pollution are experienced at【C18】______ distances from the source, as, for example, the fallout of tetraethy lead from urban automobile【C19】______ which has been observed in the oceans and on the Greenland ice sheet. Still【C20】______ directly experienced are the possible effects of air pollution on global climates. [br] 【C12】
选项
A、resource
B、base
C、source
D、basis
答案
C
解析
本题也是语义题,从上下文判断,文章在此处谈论的是空气污染的可能最重要的自然来源。选项A resource表示“资源”,选项B base表示“基础”,选项D basis表示“基础”,选项C source表示“来源”为本题的正确选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3822810.html
相关试题推荐
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
Airpollutioninvolvesthereleaseintotheatmosphere【C1】______gases,fi
随机试题
VanityFair,acausticsatirenovelonthearistocratic-bourgeoissocietyofthe
FiveProblemsFinancialReformD
DaydreamingⅠ.Daydreamingcanbeharmfulbecauseitwasc
ProfessorJohnson’sretirement______fromnextJanuary.A、carriesintoeffectB、t
Thisgloveistoobigandtheotheristoosmall.Neither______(fit)me,soth
下列哪些工具可以在选项调板中使用选区运算:
供应链的概念更加注重围绕核心企业的()。A.财务关系 B.网链关系 C.
第二乳磨牙牙根开始吸收的时间通常是A.9岁 B.10岁 C.7岁 D.8岁
Thechangeinthatvillagewasmiraculou
专用于测定油中水分含量的油样,可取10m~20mL。
最新回复
(
0
)