HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
A、onlyAmythical(imaginary)creature,thedragonwasbelievedtohavelion'sclaws,scalyskin,andfierybreath.
ThecompanyissuesanannualreporteveryMarch.
Urbanrenewalprogramsstrivetoupgradeareasthatarebecomingslums.
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
Formerly,intheUnitedStates,manynursesworkedasprivatedutynursesratherthaninhospitals.
