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【单选题】
电路如图所示，UCC=12V，晶体管T的电流放大系数β=50，RB= 300 kΩ，RC= 3 kΩ，晶体管T处于（ ）。【图片】A.
放大状态
B.
截止状态
C.
饱和状态
D.
开关状态
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