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问题 多项选择题

职业健康监护的主要内容有( )。

A．职业健康检查

B．建立职业健康监护档案

C．进行安全检查

D．生产安全教育培训

E．职工安全生产培训

答案

参考答案：A,B

解析： 职业健康检查包括上岗前、在岗期间和应急的健康检查；用人单位还应该建立职业健康监护档案，每人1份。

单项选择题

在没有法律和合同根据的情况下，损害他人利益而获得自身利益的行为称为()。

A．不当得利

B．无因管理

C．侵权

D．债

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单项选择题

Frame Relay is simplified form of (71) , similar in principle to (72) , in which synchronous, frames of data are routed to different destinations depending on header information . Packets are routed throught one or more Virtual Circuits known as (73) . Most Virtual Circuits are (74) ,which means that the network provider sets up all DLCI connections at subscription time. (75) are also part of the Frame Relay specification . They privide a link that only lasts only as long as the session.

A．Datagram Switching

B．Datagram Routing

C．Packet Switching

D．packet Routing
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