单项选择题
单项选择题 Toprovideefficientroamingbetweenthecells，whichpercentofcelloverlapisrecommendedfor2.4GHzand5GHzaccesspoints？（）
单项选择题 WhichCiscoaccesspointshouldbeusedforacustomersitethatrequestshardwaretosupportMaximalRatioCombiningindoors？（）
单项选择题 Inwhichofthesephasesisadetaileddesignofaproposedcustomersolutiondeveloped？（）