ThemostimportantfeaturesinthegrowthofAmericaneconomyintheearly20thcenrutywere（）
A. theuseofsteamandelectricityaschiefenergy,thedevelopmentoflarecorporationandthedevelopmentofrailway
B. thedevelopmentoflargecorporation,urbanizationandtheemploymentinproductionofnewtechnology
C. theappearanceofairplane,theuseofelectricityonalargescaleandurbanization
D. therapiddevelopmentofindustry,railwayandlargecities
下列词语表示“期请”的是（）。
A. 是否可行、妥否、当否、是否同意
B. 蒙、承蒙、妥否、是否同意
C. 敬希、烦请、恳请、希望、要求
D. 可行、不可行、希望、妥否
TheProgressiveMovementwas（）
A. anorganizedcampaignwithdefinitegoals
B. amovementaimingatexposingthedarksidesofsociety
C. notanorganizedcampaignwitheffortstoimprovepeople'slivingstandard
D. anumberofdiverseeffortsaimingatachievingpolitical,socialandeconomicreforms
Inthepoliticalarea,theProgressiveMovementwantedto（）
A. improvethelivingconditionsofurbanpoor
B. reformthenationalgovernment
C. changeelectionsystemsincityandstategovernmentsandcheckcorruption
D. checkcorruptionincityandstategovernments
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