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新概念英语第四册多项选择题整合如果你也想学好英语,又怎能错过新概念英语今天给大家带来新概念英语第四册多项选择题,希望能够帮助到大家,下面就和大家分享,来欣赏一下吧Multiple choicequestions多项选择题Choose thecorrect answersto thefollowing questions.Comprehension理解1,Deep drillingtechniques haveimproved greatlybecause_______.a.of theneed tolocate oilb.it isnecessary togo downas muchas25,000feet c.there isno needto sendmen downdeep holesto getoil d.of theconstant searchfor mineraldeposits2,Its necessaryto putup anoil derrick_____.a.because itis likea giantblock andtackle b.to rotatethe engineat thetop c.to controlall theequipment neededto drilla deephole d.to decideexactly whereto drillfor oil3,The onlyway ofknowing whatrocks thedrill hasreached isto_____.a.cut cleancylinders ofrock b.use thecoring bitc.take noteof thestrata belowthe surfaced.bring upspecimen materialfrom timeto time4,If youdont controlthe oilpressure________.a.oil willbe forcedto thesurface withgreat forceb.mud willha...。