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问题 名词解释

土地改革

答案

参考答案：

土地改革，具体来说就是土地制度改革，包括方方面面的内容。比如土地税收制度改革、土地产权制度改革、土地使用制度的改革等等。

多项选择题

下列哪些是心肌梗死病灶的CT增强扫描表现（）

A.早期增强扫描呈高密度影

B.早期增强扫描呈局限性低密度影

C.延迟扫描原低密度影范围缩小

D.延迟扫描呈低密度影

E.延迟扫描呈片状高密度影
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单项选择题

Frame Relay is simplified form of (1) , similar in principle to (2) , 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 (3) Most Virtual Circuits are (4) , which means that the network provider sets up all DLCI connections at subscription time. (5) are also part of the Frame Relay specification. They privide a link that only lasts only as long as the session.

3（）

A．DLCIs

B．HDLCs

C．SDLCs

D．DLs
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