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【多选题】
关于优先股票的论述正确的是（ ）。A.
优先股票是指股东享有某些优先权利的股票
B.
相对于普通股票而言，优先股票在其股东权利上附加了一些特殊条件．是特殊股票中最重要的一个品种
C.
优先股票作为一种股权证书，代表着对公司的所有权
D.
优先股票也兼有债券的若干特点，它在发行时事先确定固定的股息率，像债券的利息率事先固定一样
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【单选题】The advantage of employees having foreign language skills is that they can ______ .
A.
better control the whole negotiation process
B.
easily find new approaches to meeting market needs
C.
fast-forward their proposals to headquarters
D.
easily make friends with businesspeople abroad
【单选题】The advantage of employees having foreign language skills is that they can ______ .
A.
hatter control the whole negotiation process
B.
easily find new approaches to meet market needs
C.
fast-forward their proposals to headquarters
D.
easily make friends with businesspeople abroad
【单选题】The advantage of employees having foreign language skills is that they can ______.
A.
easily find new approaches to met market needs
B.
easily make friends with businesspeople abroad
C.
better control the whole negotiation process
D.
fast-forward their proposals to headquarters
【单选题】对于封装过程,以下哪一项描述是错误的。
A.
TCP报文成为MAC帧的数据
B.
IP分组成为MAC帧的数据
C.
路由器输出端口将IP分组封装成输出端口连接的传输网络对应的帧格式
D.
路由器接收端口逐层剥离封装,直到分离出IP分组
【单选题】对于封装过程，以下哪一项描述是错误的。
A.
路由器接收端口逐层剥离封装，直到分离出IP分组
B.
路由器输出端口将IP分组封装成输出端口连接的传输网络对应的帧格式
C.
IP分组成为MAC帧的数据
D.
TCP报文成为MAC帧的数据
【单选题】The advantage of employees having foreign language skills is that they can______.
A.
better control the whole negotiation process
B.
easily find new approaches to met market needs
C.
fast-forward their proposals to headquarters
D.
easily make friends with businesspeople abroad
【单选题】对于封装过程,以下哪一项描述是错误的。
A.
路由器接收端口逐层剥离封装，直到分离出IP分组
B.
由器输出端口将IP分组封装成输出端口连接的传输网络对应的帧格式
C.
IP分组成为MAC帧的数据
D.
TCP报文成为MAC帧的数据
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