首页
登录
职称英语
Oil pools are valuable underground accumulations of oil, and oil fields are
Oil pools are valuable underground accumulations of oil, and oil fields are
游客
2025-02-05
20
管理
问题
Oil pools are valuable underground accumulations of oil, and oil fields are regions underlain by one or more oil pools. When an oil pool or field has been discovered, wells are drilled into the ground. Permanent towers, called derricks, used to be built to handle the long sections of drilling pipe. Now portable drilling machines are set up and are then dismantled and removed. When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it. Although this rise of oil is almost always carefully controlled today, spouts of oil, or gushers, were common in the past. Gas pressure gradually dies out, and oil is pumped from the well. Water or steam may be pumped down
adjacent
wells to help push the oil out. At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils. Petrochemicals such as dyes, fertilizer, and plastic are also manufactured from the petroleum. [br] The word "
adjacent
" in the passage is closest in meaning to
选项
A、nearby
B、existing
C、special
D、deep
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3944651.html
相关试题推荐
Beginningaround1830,theUndergroundRailroadhelpedthousandsofescapedslav
Thechipmunkbuildsitsnestineitheranundergroundburrow______.A、inahollow
ThenumberofAwomenwhoBenternontraditionalfieldsChavebeenDincreasingste
汉字在历史上有过不可磨灭的功绩。ThesystemofChinesecharactershasplayedaninvaluablerolei
Allrootvegetablesgrowunderground,andnotallvegetablesthatgrowundergrou
Allrootvegetablesgrowunderground,andnotallvegetablesthatgrowundergrou
Mr.JasonMatthews,______collectionofpicturesavaluableRembrandwasgivento
Adiamondorrubyisajewelrythatisoftenusedtodecoratevaluableornaments
Infact,moneyaloneisalmostinvaluable.invaluable改成valueless
Allrootvegetablesgrowunderground,andnotallvegetablesthatgrowundergrou
随机试题
参与并取胜,这就是奥林匹克精神。它表现在弱者敢于向强者挑战,也表现在奋力拼搏争取更好的成绩。胜而又胜,优而更优,这种理想一直鼓舞着运动员奋力前进。他会尽
TheoriesonWhyWeLikeOtherPeopleInordertofigureoutthereasonswhyw
CollegeLifeAmericancollegeanduniversitystudentswho【T1】______away
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]W:Everybodyshoulddohisbitforthedinnerparty.Wouldyouma
女性,16岁,要求治疗右上前牙。3个月前,右上中切牙外伤未及时就诊。检查:近中切
下列化学实验事实及其解释都正确的是()。A.FeCl3溶液可以腐蚀线路板上的Cu
下面关于双壁钢围堰施工要求错误的是()A、拼焊后应进行焊接质量检验及水密性试验
下列各项不属于劳动合同法定分类的是()。A.固定期限劳动合同 B.无固定期
期货公司违反投资者适当性制度要求,未能执行相关内控、合规制度的,()依据相关法律
最新回复
(
0
)