简述吸附法的定义和特点。
可变性研究
What occurs on a Frame Relay network when the CIR is exceeded?（） All TCP traffic is marked discard eligible.。 All UDP traffic is marked discard eligible and a BECN is sent.。 All TCP traffic is marked discard eligible and a BECN is sent.。 All traffic exceeding the CIR is marked discard eligible.。
金融脆弱性
母岩
下列哪种情绪比其他情绪更具有感染性（）
