软件的主要特性是( ) 。
ABC
暂无解析
IntheUnitedKingdom,policeofficersarenotallowedtojoin________ortogoonstrike.
Policeare________thedisappearanceoftwochildren.
Howmanyformscanarticlesberoughlydividedinto?whatarethey?
Heinsuredhiscar________hehadanaccident.
Whataretheparagraphqualities?