What is the passage mainly about? The word "it" in line 12 refers to which of the following?

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问题 What is the passage mainly about?
The word "it" in line 12 refers to which of the following?

选项 A、Problem.
B、Material.
C、Difficulty.
D、System.

答案B

解析这句话的意思是：最严重的问题是可用物质的广泛性及把它组成系统的困难。这里的“it”指的便是“material”。

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本试题收录于：职称英语综合类B级题库职称英语分类

职称英语综合类B级

职称英语

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What is the passage mainly about? The word "it" in line 12 refers to which of the following?

职称英语综合类B级

职称英语

Accordingtotheauthor,informationtechnologyhasnothingpositivetosay.Thosewhocriticizedinformationtechnologiesare

TheroleofthebodyclockistoTheword"malady"inParagraph4isclosestinmeaningto

AtthebottomoftheworldliesamightycontinentstillwrappedintheIceAgeand,untilrecenttimes,unknowntoman.Itisa

Awarenessofearthquakehazardsisnowwelldevelopedinmanycountries,andtheU.S.GeologicalSurveyhasrecentlypublished

HowDidSheConquertheAmericans?African-AmericantalkshowqueenOprahWinfreyistheworld’smostpowerfulcelebrity,acc

HowDidSheConquertheAmericans?African-AmericantalkshowqueenOprahWinfreyistheworld’smostpowerfulcelebrity,acc

Mostpeoplehavesimilarideasofwhataphysicistlookslike.TheInternationalScienceOlympiadsareheldonceeverytwoyear

TeachingPoetryNopoemshouldeverbediscussedor"analyzed",untilithasbeenreadaloudbysomeone,teacherorstudent.

Apeculiarlypointedchinishismostmemorablefacialcharacteristic.

ManyofCarsonMcCuller’scharactersareisolated,disappointedpeople.

有关现金流量表与利润表说法正确的有()。

以下说法中正确的是

关于结合胆红素的特点的描述，错误的是

根据《水利水电工程预应力锚索施工规范》DL／T5083--2010，水利水电工程预应力锚索施工，钢绞线必须采用()下料。

某生产性企业(增值税一般纳税人)的下列账务处理中错误的有()。

三顾茅庐：刘备

关于音高表述错误的是

SoBig.Fdamagedcomputerprogramsmainlyby_.FromthetextwelearnthatWelch_.

Speech,whetheroralorwritten,isausedcommodity.Ifwearetobeheard,wemust(1)_ourwordsfromthose(2)_tou

已知如下代码：　　booleanm=true；　　if(m==false)　　System.out.println("False")；　　else　　System.out.println("True")；　　执行结果是()。

What is the passage mainly about? The word "it" in line 12 refers to which of the following?

职称英语综合类B级

职称英语

Accordingtotheauthor,informationtechnologyhasnothingpositivetosay.Thosewhocriticizedinformationtechnologiesare

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AtthebottomoftheworldliesamightycontinentstillwrappedintheIceAgeand,untilrecenttimes,unknowntoman.Itisa

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HowDidSheConquertheAmericans?African-AmericantalkshowqueenOprahWinfreyistheworld’smostpowerfulcelebrity,acc

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Mostpeoplehavesimilarideasofwhataphysicistlookslike.TheInternationalScienceOlympiadsareheldonceeverytwoyear

TeachingPoetryNopoemshouldeverbediscussedor"analyzed",untilithasbeenreadaloudbysomeone,teacherorstudent.

Apeculiarlypointedchinishismostmemorablefacialcharacteristic.

ManyofCarsonMcCuller’scharactersareisolated,disappointedpeople.

有关现金流量表与利润表说法正确的有()。

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关于结合胆红素的特点的描述，错误的是

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某生产性企业(增值税一般纳税人)的下列账务处理中错误的有()。

三顾茅庐：刘备

关于音高表述错误的是

SoBig.Fdamagedcomputerprogramsmainlyby_____.FromthetextwelearnthatWelch_____.

Speech,whetheroralorwritten,isausedcommodity.Ifwearetobeheard,wemust(1)_____ourwordsfromthose(2)_____tou

已知如下代码： booleanm=true； if(m==false) System.out.println("False")； else System.out.println("True")； 执行结果是()。

SoBig.Fdamagedcomputerprogramsmainlyby_.FromthetextwelearnthatWelch_.

Speech,whetheroralorwritten,isausedcommodity.Ifwearetobeheard,wemust(1)_ourwordsfromthose(2)_tou

已知如下代码：　　booleanm=true；　　if(m==false)　　System.out.println("False")；　　else　　System.out.println("True")；　　执行结果是()。