从培训教学角度，一般要求安全培训环境应具备的条件是（） ["有很好的旅游环境、保证学员旅游","桌椅数量足够、不易损坏，使用舒适","周围有大商场，以便学员购物","居住条件要豪华，以保证学员睡眠"]
Which statement about Fibre Channel communications is correct?（） [" It operates much like TCP."," Flow control is only provided by QoS."," It must be implemented in an arbitrated loop."," Communication methods are similar to those of an Ethernet bus."," N_Port to N_Port connections use logical node connection points."]
说明下列句中词的古义和今义近臣尽规，亲戚补察。
简述流感灭活疫苗接种对象及使用方法。
流窜作案，是指（） ["三人以上共同作案","在居住地作案后逃跑到外市县继续作案","跨县市管辖范围连续作案","在本县市内三个以上街道、社区连续作案"]
某保险公司准备将一份20万元的每年可更新定期保险单出立给一个年龄40岁的人。根据生命表可知一个年龄40岁的人在该年的死亡概率是0.001650。若预定利率为3.0%，试计算该保险单的一次交清净保费。
