题目内容

职工个人不缴纳工伤保险费。

A. 对
B. 错

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对问题管理描述正确的是（）

A. 问题管理流程须确保供方具有检测事件、尽快解决事件的能力
B. 问题管理流程须确保供方通过识别引起事件的原因并解决问题，预防同类事件重复发生
C. 问题管理流程须确保维护运行维护服务对象的必要记录
D. 问题管理流程须确保供方通过管理、控制变更的过程、确保变更有序实施

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN. （3）处选择（）

A. different
B. unique
C. special
D. corresponding

在社会保障原则中，社会保障方面的支出要小于收入是属于（）

A. 公平性原则
B. 互济性原则
C. 强制性原则
D. 福利性原则

下列属于“统一为主适当分散体制”的社会保障组织形式的国家是（）

A. 英国
B. 法国
C. 波兰
D. 意大利