内部评级法初级法下，合格净额结算包括（）。 ["表内净额结算","表外净额结算","回购交易净额结算","场外衍生工具净额结算","交易账户信用衍生工具净额结算"]
General radio communications in the global system are those between（）concerning the management and operation of the ships and may have impact on their safety. ["SAR party and the ship in distress","SAR authorities and the ship in distress and survival craft","A ship station and any coast station","Ship stations and shore-based communication network"]
采用内部评级法计量信用风险监管资本时，信用风险缓释功能可以体现为（）。 ["违约概率下降","风险损失降低","违约损失率下降","违约风险暴露下降","组合限额降低"]
下列关于计量违约损失率的说法，正确的有（）。 ["计量违约损失率的方法主要有市场价值法和回收现金流法","可以通过市场上类似资产的信用价差和违约概率推算违约损失率","无论是从资本监管的角度还是从商业银行内部管理的角度，计量违约损失率都是十分重要的","对于存在抵押品的债务，在估计违约损失率时，必须考虑到抵押品的风险缓释效应","计量违约损失率的方法主要有市场法和隐含市场法"]
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焊件和焊丝的焊前清理的方法有哪些？
