A、Steel cables. B、An open carriage. C、Guide rails. D、Strong ropes. C

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问题

选项 A、Steel cables.
B、An open carriage.
C、Guide rails.
D、Strong ropes.

答案C

解析

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大学英语四级

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A、Steel cables. B、An open carriage. C、Guide rails. D、Strong ropes. C

大学英语四级

A、TheflatinBakerStreethasalreadybeenrented.B、Theflatisinaverygoodlocation.C、Thewomanmightnotbeabletorent

A、Theyhidethemselves.B、Theykeepsilent.C、Theystayawayfromotherbirds.D、Theymakesomesigns.DWhatdomostbirdsusual

Thepassagegivesanoverviewofhurricanesandtheirhistory.TheUnitedNationsbelievesthattheonlywaytopreventworseh

A、Beforetheendofthemonth.B、Atthebeginningoftheyear.C、Nextmonth.D、Anytime.AWhenshouldastudentapplyifhewant

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A、Hehastohandlealotofwork.B、Therewillbealotofpeopleandcarsonthestreets.C、Itisgoingtobecloudythisweeke

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A、5penceperday.B、5pencepermonth.C、5penceperweek.D、15penceperweek.CHowmuchmoneydidWaitergetforworkingfor

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主体在客观世界摄取象征物，赋予其一定的象征意义，以此种方式形成的意象便是()

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简述20世纪50～80年代苏联教育改革的主要特点。

设二维随机变量(X，Y)的分布律为(I)求常数a；(Ⅱ)求两个边缘分布律；(Ⅲ)说明X与Y是否独立；(Ⅳ)求3X+4Y的分布律；(V)求P{X+Y＞1}．

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