下列说法正确的是（）。 ["累计总敞口头寸法和净总敞口头寸法均比较保守","累计总敞口头寸法比较保守，净总敞口头寸法较为激进","累计总敞口头寸法较为激进，净总敞口头寸法比较保守","累计总敞口头寸法和净总敞口头寸法均较为激进"]
下列不属于附件中常用工具的是（）。 ["便笺","数学输入面板","命令提示符","备份和还原"]
个人住房贷款采用质押担保方式时，以下属于无效质物的是（）。 ["个人定期储蓄存单","土地使用权","单位定期存单","国家重点建设债券"]
在案件查询授权中，权限最大的是？（） ["A.办案人员查询","B.监督部门查询","C.分管查询","D.普通查询"]
A lifeboat is weight tested by lowering to near the waterand loading to capacity with weight evenly distributed. Itis then lowered into the water and released. This test mustbe done at least once every（）. ["6 months","12 months","18 months","24 month"]
针刺密度
