The passage is chiefly about . The underwater listening system was originally designed .

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问题 The passage is chiefly about ______.
The underwater listening system was originally designed ______.

选项 A、to trace and locate enemy vessels
B、to monitor deep-sea volcanic eruptions
C、to study the movement of ocean currents
D、to replace the global radio communications network

答案A

解析

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本试题收录于：公共英语四级笔试题库公共英语（PETS）分类

公共英语四级笔试

公共英语（PETS）

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The passage is chiefly about ______. The underwater listening system was originally designed ______.

公共英语四级笔试

公共英语（PETS）

Wherewastheletterprobablyplacedmanyyearsago?

Somemodemcitiesareusuallyfamousforpeoplewholiveaverylongtime.

Supermarketshoppershaveneverbeenmorespoiltforchoice.Butjustwhenwethoughttraditionalsystemsofselectivefarmingh

Supermarketshoppershaveneverbeenmorespoiltforchoice.Butjustwhenwethoughttraditionalsystemsofselectivefarmingh

Themanbehindthisnotion,JackMaple,isadandywhoaffectsdarkglasses,homburgs(翘边帽)andtwo-toeshoes;yethehasbecomes

Inathree-monthperiodlastyear,twoBrooklyniteshadtobecutoutoftheirapartmentsandcarriedtohospitalonstretchers

Whenitcomestotheslowingeconomy,EllenSperoisn’tbitinghernailsjustyet.Butthe47-year-oldmanicuristisn’tcutting,

FlorenceSephtonis77andlives【1】Deganwy,NorthWales.Sheisreading【2】anartsdegree."I’mmore【3】acreaturetopolishmymi

Thenursingstaff______.Whymustnursesworkinshifts?

Thenursingstaff______.Whydon’tnursesstudyforasmanyyearsasdoctors?

肘横纹中，肱二头肌腱桡侧凹陷中的腧穴是

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工程项目竣工决算应包括()全过程的全部实际支出费用。

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The passage is chiefly about . The underwater listening system was originally designed .