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六、什么是学习过程
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【单选题】The hardware address of a computer on a LAN can also be called a MAC address because ().
A.
Hardware address is the address used in the media access control layer when transmitting data.
B.
It is the address. MAC is the abbreviation of physical address.
C.
It is the physical layer address, and MAC is the abbreviation of the physical layer.
D.
It is the link layer address, and MAC is the abbreviation of link layer.
【简答题】2018年末,农村贫困人口减少—万人,贫困发生率下降至 。
【简答题】2018年,农村贫困人口减少_ 万人,贫困发生率下降至_。
【单选题】In the following descriptions about MAC address, which one is not correct? ( )
A.
The MAC address is the address of one node’s adapter.
B.
No two adapters have the same MAC address.
C.
The MAC address doesn’t change no matter where the adapter goes.
D.
MAC address has a hierarchical structure.
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