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问题 单项选择题

关于状态变化过程（）①非静态过程在压容图上无法用一条连续曲线表示；②系统进行了一个过程后，如能使系统沿着与原过程相反的方向恢复初态，则这样的过程称为可逆过程；③内外平衡是可逆过程的充分和必要条件；④只有无摩擦的准静态过程才是可逆过程。

A、①④对

B、②③对

C、①③④对

D、②对

答案

参考答案：C

听力题

阅读下面短文，掌握其大意，然后根据短文内容和首字母提示，在短文空白处填入适当的单词，使短文内容通顺、合理。并将完整的单词填写在答题卡的相应位置上。

Tuesday, 4th May

Hurray! I’ve just met my all-time hero — Wong Kam-Po. I’ve seen him many t  小题1:    on television, but it was fantastic to meet him in person because c  小题2:   is my favourite sport. I’d love to be a professional cyclist (自行车手) one day.

I arrived at Shangri-La Hotel on Sunday to meet my family for lunch, when I found out that Wong Kam-po was giving a talk there. I decided to l  小题3:   to the talk instead. Wong talked about w  小题4:    the gold medal at the 2006 Asian Games. He said he felt very p  小题5:     of himself and his teammates. He explained how he and his team prepared themselves for races.

After the talk, I went up to him and introduced m  小题6:   . I asked him f  小题7:   some advice to improve my riding skills. I was a bit nervous s 小题8:    I couldn’t express myself very well. Wong said that we needed to believe in ourselves and should never give u  小题9:   .

It was a fantastic e 小题10:     and I really enjoyed talking to my hero!
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问答题

阅读以下说明，回答问题1至问题3，将解答填入答题纸对应的解答栏内。 

某公司的网络结构如图4-1所示，所有PC机共享公网IP地址211.156.168.5接入Internet，另外有2台服务器提供Web服务和FTP服务，服务器的内网和公网地址如表4-1所示。

【问题2】 

完成表4-3所示防火墙上的NAT转换规则，以满足防火墙部署要求。

 

（6）处填（）
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