1999年，我国寿险市场推出投资连结险的重要原因是规避（）风险。 ["利率","死亡率","费用率","解约率"]
Which WebSphere Commerce business models allow business buyers to purchase under contracts and create requests for quote？（） ["Consumer Direct","B2B Direct","Demand Chain","Supply Chain","Hosting"]
我国计算日平均水位的日分界是从（）时至（）时。 ["0~24","08~08","12~12","20"]
回归分析中t检验是回归系数的显著性检验，以下说法不正确的是（）。 ["t检验用于判定预测模型变量x和y间线性关系是否成立","数据样本量n对回归系数和回归检验有重要影响","t分布表的t值只与数据样本量n有关","tb>t值，说明回归系数显著性不为0，参数t检验通过，变量x和y间线性关系合理"]
A system administrator has set up a Virtual IO Server to manage three micropartitioned LPARs. Physical disks are attached to the Virtual IO Server which is accessed through Multipath IO. What should the administrator know about monitoring for error conditions with virtual disks?（） ["Both permanent and temporary virtual hardware error messages are logged to each client partition sharing the device.","Both permanent and temporary error messages for virtual hardware are logged at each occurrence on the Virtual IO Server and then propagated to the client partition.","Temporary error messages for virtual hardware are logged at each occurrence on the Virtual IO Server. Permanent error messages for virtual hardware are stored on the client partition.","Temporary error messages for virtual hardware will not necessarily be propagated to the client partition. Permanent error messages for virtual hardware are only logged once on the Virtual IO Server."]
应聘者有许多来源？请举例加以说明，并比较他们的优缺点？
