题目内容

VPN服务器既可以接收来自VPN传输的数据，也可接收来自Internet的数据。对于来自VPN传输的数据(7)，来自Internet的数据(8)。VPN服务器是通过(9)来区分这两种IP数据包的。

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SECTION A COMPOSITION (35 MIN)
Everyone needs to communicate with others in Ids life. But it doesn't mean you are necessarily a good communicator. To improve effectiveness, you have to learn communication techniques.
Write on ANSWER SHEET TWO a composition of 'about 200 words on the following topic:
How to Improve Communication Effectiveness
You are to write in three parts.
In the first part, state specifically what your idea is.
In the second part, provide one or two reasons to support your idea or describe your idea.
In the last part, bring what you have written to a natural conclusion or a summary.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

SSIL协议数据封装过程包括：(下面①到⑤未按顺序排列)
①附加首部数据，包括内容类型、主要版本、次要版本、压缩长度。
②使用共享密钥计算报文鉴别代码(MAC)；
③可选地应用压缩；
④分片，将上层交付的报文分成214字节或更小的数据块；
⑤使用同步算法加密报文；
将①～⑤按照应答过程重新排序为______。

计算甲企业3月份应缴纳的城市维护建设税和教育费附加。

This airline has offered more comfortable seats to travelers.