金融工具之间的种种差别，概括起来不外乎是三个方面即：（）、（）、（）不同。
常用地址符（）代表进给速度。 ["F","R","S","Y"]
You want to dynamically assign users to an 802.1q vlan as a result of their authentication. In order to accomplish this，which two ietf radius attributes should you configure on the cisco secure acs？（） ["083 tunnel-preference","066 tunnel-client-endpoint","064 tunnel-type","082 tunnel-assignment-id","081 tunnel-private-group-id","067 tunnel-server-endpoint"]
当客户卖出ADR而无人买入时，客户必须等到有人买入时才可以将手中的ADR卖出。
作为垃圾填埋场的防渗帷幕，一般不具有以下特点（） ["一般应选择粒度粗的注浆材料","帷幕长度和注浆段深度一般较小","一般应选择粒度细的注浆材料","D注浆压力和耗浆量较小"]
无差异性营销
