Whichofthefollowingwouldbeanadvantagetousingablade(刀片)server(服务器)asopposedtoarack(机架式)mountserver?()

Whichofthefollowingwouldbeanadvantagetousingablade（刀片）server（服务器）asopposedtoarack（机架式）mountserver？（）

A、Bladeserversallowforinternaltapedrives

B、Bladeserversoffermorerackdensity

C、Bladeserversaretypicallyfaster

D、BladeserversallowformoreRAM