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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】如果将设备接入X.25公共分组网，必须为接入的X.25接口按照接入服务提供商的要求来设置一个地址，这个地址叫（）.
A.
IP地址
B.
MAC地址
C.
VPI/VCI标识
D.
X.121地址
【单选题】Passage Two:Questions 26 to 30 are based on the following passage.If you want to stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that mo...
A.
why certain people age sooner than others
B.
how to make people live longer
C.
the size of certain people’s brains
D.
which people are most intelligent