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