首页
登录
职称英语
Petroleum products, such as gasoline, kerosene, home heating oil, residual f
Petroleum products, such as gasoline, kerosene, home heating oil, residual f
游客
2023-07-18
71
管理
问题
Petroleum products, such as gasoline, kerosene, home heating oil, residual fuel oil, and lubricating oils, come from one source-crude oil found below the earth’s【S1】______, as well as under large bodies of water, from a few hundred feet below the surface to as deep as 25,000 feet into the earth’s【S2】______. Sometimes crude oil is secured by drilling a hole through the earth, but more dry holes are drilled than those producing oils. Pressure at the source or pumping【S3】______crude oil to the surface.
Crude oil wells flow at varying rate, from ten to thousands of barrel per hour. Petroleum【S4】______are always measured in 42-gallon barrels.
Petroleum products vary greatly in physical appearance: thin, thick, transparent or opaque, but regardless, their chemical composition is made【S5】______of only two elements: carbon and hydrogen, which form compounds called hydrocarbons. Other chemical elements【S6】______in union with the hydrocarbons are few and reclassified as impurities. Trace elements are also found, but these are of such minute quantities that they are disregarded. The【S7】______of carbon and hydrogen forms many thousands of compounds which are possible because of the various positions and joining of these two atoms in the hydrocarbon molecule.
The various petroleum products are【S8】______from the crude oil by heating and condensing the vapors. These products are the so called light oils, such as gasoline, kerosene, and distillate oil. The residue remaining after the light oils are distilled is known as【S9】______or residual fuel oil and is used mostly for burning under boilers. Additional complicated refining processes rearrange the chemical structure of the hydrocarbon to produce other products, some of which are used to【S10】______and increase the octane rating of various types of gasoline.
A) degrade B) refined C) up D) light
E) products F) into G) surface H) heavy
I) forces J) combination K) exterior L) found
M) upgrade N) made O) interior [br] 【S2】
选项
答案
O
解析
根据句子结构,此处要填写一个名词,根据文意,石油应是在地球内部而非表面,故interior(里面,内部)最符合句意。本句意为:……那就是在地表或大型水体下发现的原油,从地表下数百英尺到地球内部25 000英尺之深。
转载请注明原文地址:http://tihaiku.com/zcyy/2848649.html
相关试题推荐
Thesteadyriseinthequalityofourproducts______theimprovementofourequ
Tomlookedverymuch______whenhewascaughtcheatingintheEnglishexaminati
A、Sheworksatthemeatcounter.B、Shearrangesproductsinneatpilesonthesh
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
Petroleumproducts,suchasgasoline,kerosene,homeheatingoil,residualf
随机试题
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
Policefiredteargasandarrestedmorethan5,000passivelyresistingprot
HowSafeIsYourCellPhone?A)Ittakesalittleextrawork
交通安全设施测试环境条件为()。A.温度23℃±2℃、相对湿度50%±10%
根据移动平均法,如果某只股票价格超过平均价的某一百分比时则应该( )。A.买入
2017年末,全国民用汽车保有量21743万辆,比上年末增长11.8%。其中私人
Thechangeinthatvillagewasmiraculou
季节性资产增加中,应付账款、应计费用属于()融资渠道。A.季节性负债 B
A.18至50周岁健康公民自愿献血 B.18至55周岁健康公民自愿献血 C.
(2018年真题)关于社会评价中利益相关者的说法,错误的是()。A.利益相关者是
最新回复
(
0
)