流动作可以包括（）。
A.基于类的标记动作
B.基于类的流量监管和整形动作
C.CBQ动作
D.基于类的WRED动作
参考答案：A, B, C, D
(2013·乌鲁木齐高三第一次诊断性测验)Yesterday, I came across my former classmate, but his name ________ me, which made me embarrassed.
A．forgot
B．missed
C．escaped
D．reminded
原核生物不存在5.8S rRNA。 ( )
