单选题All of these are fundamental building blocks of a differentiated services Traffic Conditioner Block except which one？（）AdropperBclassifierCmarkerDquerierEmeterFshaper
单选题
All of these are fundamental building blocks of a differentiated services Traffic Conditioner Block except which one？（）
A
dropper
B
classifier
C
marker
D
querier
E
meter
F
shaper
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解析：
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