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结合重大节日的庆祝活动，支队应每年组织（）次歌咏比赛。

A. 1
B. 2
C. l—2
D. 2—3

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挖掘机的发展趋势向大型化、多功能化（）的方向发展。

A. 小型化
B. 先进化
C. 多样化
D. 操控自动化

Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.Whenhumansfirst1,theywerelikenewbornchildren,unabletousethis2tool.Yetoncelanguagedeveloped,thepossibilitiesforhumankind’sfuture3andculturalgrowthincreased.Manylinguistsbelievethatevolutionis4forourabilitytoproduceanduselanguage.They5thatourhighlyevolvedbrainprovidesus6aninnatelanguageabilitynotfoundinlower7.Proponentsofthisinnatenesstheorysaythatour8forlanguageisinborn,butthatlanguageitselfdevelopsgradually,9afunctionofthegrowthofthebrainduringchildhood.Thereforetherearecritical10timesforlanguagedevelopment.Current11ofinnatenesstheoryaremixed,however,evidencesupportingtheexistenceofsomeinnateabilitiesisundeniable.12,moreandmoreschoolsarediscoveringthatforeignlanguagesarebesttaughtin13grades.Youngchildrenoftencanlearnseverallanguagesbybeing14tothem,whileadultshaveamuchhardertimelearninganotherlanguageoncethe15oftheirfirstlanguagehavebecomefirmlyfixed.16someaspectsoflanguageareundeniablyinnate,languagedoesnotdevelopautomaticallyinavacuum.Childrenwhohavebeen17fromotherhumanbeingsdonotpossesslanguage.Thisdemonstratesthat18withotherhumanbeingsisnecessaryforproperlanguagedevelopment.Somelinguistsbelievethatthisisevenmorebasictohumanlanguage19thananyinnatecapacities.Thesetheoristsviewlanguageasimitative,learnedbehavior.20,childrenlearnlanguagefromtheirparentsbyimitatingthem.Parentsgraduallyshapetheirchild'slanguageskillsbypositivelyreinforcingpreciseimitationsandnegativelyreinforcingimpreciseones.请在15处填上正确答案（）

A. regulations
B. formations
C. rules
D. constitutions

西班牙语系国家中规模最大的通讯社是（）

A. 墨西哥通讯社
B. 拉丁美洲通讯社
C. 安莎通讯社
D. 埃菲通讯社

Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.Whenhumansfirst1,theywerelikenewbornchildren,unabletousethis2tool.Yetoncelanguagedeveloped,thepossibilitiesforhumankind’sfuture3andculturalgrowthincreased.Manylinguistsbelievethatevolutionis4forourabilitytoproduceanduselanguage.They5thatourhighlyevolvedbrainprovidesus6aninnatelanguageabilitynotfoundinlower7.Proponentsofthisinnatenesstheorysaythatour8forlanguageisinborn,butthatlanguageitselfdevelopsgradually,9afunctionofthegrowthofthebrainduringchildhood.Thereforetherearecritical10timesforlanguagedevelopment.Current11ofinnatenesstheoryaremixed,however,evidencesupportingtheexistenceofsomeinnateabilitiesisundeniable.12,moreandmoreschoolsarediscoveringthatforeignlanguagesarebesttaughtin13grades.Youngchildrenoftencanlearnseverallanguagesbybeing14tothem,whileadultshaveamuchhardertimelearninganotherlanguageoncethe15oftheirfirstlanguagehavebecomefirmlyfixed.16someaspectsoflanguageareundeniablyinnate,languagedoesnotdevelopautomaticallyinavacuum.Childrenwhohavebeen17fromotherhumanbeingsdonotpossesslanguage.Thisdemonstratesthat18withotherhumanbeingsisnecessaryforproperlanguagedevelopment.Somelinguistsbelievethatthisisevenmorebasictohumanlanguage19thananyinnatecapacities.Thesetheoristsviewlanguageasimitative,learnedbehavior.20,childrenlearnlanguagefromtheirparentsbyimitatingthem.Parentsgraduallyshapetheirchild'slanguageskillsbypositivelyreinforcingpreciseimitationsandnegativelyreinforcingimpreciseones.请在16处填上正确答案（）

Although
B. Whether
C. Since
D. When