Teamsarerequiredformostengineeringprojects.Althoughsomesmallhardwareorsoftwareproductscanbedevelopedbyindividuals,thescaleandcomplexityofmodemsystemsissuch,andthedemandforshortschedulessogreat,thatitisnolonger(请作答此空)foronepersontodomostengineeringjobs.Systemsdevelopmentisateam(),andtheeffectivenessoftheteamlargelydeterminesthe ()oftheengineering. Developmentteamsoftenbehavemuchlikebaseballorbasketballteams.Eventhoughtheymayhavemultiplespecialties,allthemembersworktoward().However,onsystemsmaintenanceandenhancementteams,theengineersoftenworkrelativelyindependently,muchlikewrestlingandtrackteams. Ateamis()justagroupofpeoplewhohappentoworktogether.Teamworktakespracticeanditinvolvesspecialskills.Teamsrequirecommonprocesses;theyneedagreed-upongoals;andtheyneedeffectiveguidanceandleadership.Themethodsforguidingandleadingsuchteamsarewellknown,buttheyarenotobvious.
A.convenient B.existing C.practical D.real正确答案C