题目:
Questions 14-22
·Look at the ten statements for this part.
·You will hear apassage about "Credit Cards History ". You will listen to it twice.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Markyour answers on the Answer Sheet.
The first modern credit card extended the repayment time.
A. Right
B. Wrong
C. Not Mentioned
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C解析: 自治系统是由同构型的网关连接的因特网,这样的系统一般由一个网络管理中心控制。自治系统内部的网关之间执行内部网关协议。 一个互联网也可能由不同的自治系统互连而成。在这种情况下,不...