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【判断题】
交流接触器通电后如果铁芯吸合受阻,将导致线圈烧毁。A.
正确
B.
错误
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反馈参考答案：
举一反三
【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.
【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.
【多选题】下列哪些选项与建设美丽中国相匹配？
A.
环境就是民生，青山就是美丽，蓝天也是幸福
B.
绿水青山就是金山银山
C.
保护环境就是保护生产力，改造自然就是发展生产力
D.
人因自然而生，人属于自然，而不是自然属于人
【单选题】A socket is composed of two addresses:(72)。
A.
MAC address and IP address
B.
MAC address and port address
C.
port number and IP address
D.
E-mail address and IP address
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