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【单选题】
下面对使用交换技术的二层交换机的描述,哪项是错误的描述 ( )A.
通过辨别 MAC 地址进行数据转发
B.
通过辨别 IP 地址进行转发
C.
交换机能够通过硬件进行数据的转发
D.
交换机能够建立 MAC 地址与端口的映射表
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反馈参考答案：
举一反三
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【单选题】As a result of the close cooperation between our two sides, substantial business has A B been concluded to our mutual profit . C D
A.
B.
C.
D.
D
【单选题】Our business model is _____. It is not going to work as well as it used to.
A.
out of fashion
B.
out of date
C.
out of order
D.
out of place
【简答题】In each blank space write a word or phrase that fits naturally: Dear Sirs We from the web of alibaba that you are a large buyer of table-cloth. As this article within our business , we this opportunit...
【单选题】As our boss was away on a business trip, I was asked to ______ the weekly staff meeting.
A.
introduce
B.
preside
C.
dominate
D.
chair
【简答题】Starting a restaurant can be rewarding but challenging. Here are some steps to help you to make our restaurant business a success. First, take a look at the restaurants that will be your competition. ...
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