People who do not sleep enough tend to become irritable .
A、easilyannoyedA
暂无解析
ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.
Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
ThecompanyissuesanannualreporteveryMarch.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
Batsfly,ratherthanglide,andthusaretheonlymammalscapableoftrueflight.
