[阅读理解]TheUnitedStatescoversalargepartoftheNorthAmericancontinent.ItsneighborsareCanadatothenorthandMexicotothesouth.AlthoughtheUnitedStatesisabigcountry,itisnotthelargestintheworld.In1964,itspopulationwa

　　[阅读理解]TheUnitedStatescoversalargepartoftheNorthAmericancontinent.ItsneighborsareCanadatothenorthandMexicotothesouth.AlthoughtheUnitedStatesisabigcountry,itisnotthelargestintheworld.In1964,itspopulationwasover185000000.

　　Whenthislandfirstbecameanation,afterwinningitsindependence（独立）fromEngland,ithadthirteenstates.Eachofthestateswasrepresented（代表）ontheAmericanflagbyastar.Allthesestateswereintheeasternpartofthecontinent.Asthenationgrewtowardthewest,newstateswereaddedandnewstarsappearedontheflag.Foralongtime,therewere48stars.In1959,however,twomorestarswereaddedtotheflag,representingthenewstatesofAlaskaandHawaii.

　　IndianswerethefirstpeopleofthelandwhichisnowtheUnitedStates.TherearestillmanythousandsofIndiansnowlivinginallpartsofthecountry.SometimesitissaidthattheIndiansare"theonlyrealAmericans".MostAmericanscomefromallovertheworld.ThosewhocamefirstingreatestnumberstomaketheirhomesontheeasterncoastofNorthAmericaweremostlyfromEngland.

　　判断：Whichistrue?（）

　　（A）.ThepopulationofAmericaislargerthanthatofanyothercountry（B）.AmericacoversmostpartoftheNorthAmericancontinent.

　　为什么A对B错?