CR系统用成像板(IP)来接收X线的模拟信息，然后经过模／数转换来实现影像的数字化。对IP的曝光过程就是信息采集。

关于IP的叙述错误的是

A:IP作为辐射接收部件替代了常规X线摄影用的胶片 B:IP在X线下受到第一次激发时储存连续的模拟信息 C:IP被扫描后所获得的信息可以同时进行存储和打印 D:曝光后的成像板，由于吸收X线而发生电化学反应 E:IP的影像数据可通过施加强光照射来消除

Each machine in the internet is assigned a unique network address,called（）,that is used to identify the machine for communication purposes

A:MAC address B:IP address C:host address D:domain name address

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(66) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(67) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(68) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
(69) is the popular LAN developed under the direction of the IEEE 802.5.
(70) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

A:The MAC address B:The IP address C:The subnet address D:The virtual address

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(1) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(2) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(3) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
(4) is the popular LAN developed under the direction of the IEEE 802.5.
(5) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

A:The MAC address B:The IP address C:The subnet address D:The virtual address

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(71) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(72) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(73) functions with two layers of protocols. It Can connect networks of different speeds and can be adapted to an environment as it expands.
(74) is the popular LAN developed under the direction of the IEEE 802.5.
(75) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

A:The MAC address B:The IP address C:The subnet address D:The virtual address

(73) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication。

A:The virtual address B:The subnet address C:The MAC address D:The IP address

(51) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.
(52) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
(53) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.
(54) is the popular LAN developed under the direction of the IEEE802.5.
(55) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

A:The MAC address B:The IP address C:The subnet address D:The virtual address