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问题 单项选择题

最后纯损失是指（）一次事故包括诉讼费用的实际损失数字。

A.最后再保险接受人支付的

B.再保险接受人支付的

C.保险人和被保险人共同支付的

D.最后保险人支付的

答案

参考答案：D

填空题

在Na+、Al3+、Fe2+、SO42-、Cl-五种微粒中，可形成AB型化合物是___________，AB2型的化合物是________,A2B型的化合物是_________,A2B3型的化合物是_________，AB3型的化合物是_________。(均填化学式)
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单项选择题

Frame Relay is simplified form of (51) , similar in principle to (52) , 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 (53) . Most Virtual Circuits are (54) , which means that the network provider sets up all DLCI connections at subscription time. (55) are also part of the Frame Relay specification. They privide a link that only lasts only as long as the session.

A．Permanent Circuits

B．Permanent Virtual Circuits

C．Switched Virtual Circuits

D．Switched Circuits
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