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【单选题】
下列关于PC机主板的叙述,正确的是A.
不同厂家生产的主板,尺寸各不相同
B.
主板上安装有存储器芯片,例如ROM芯片、CMOS芯片等
C.
CPU是直接固定在主板上的,不可更换
D.
主板上安装有电池,在计算机断开交流电后,临时给计算机提供电流,供计算机工作
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【单选题】Directions: This par t is to test your listening ability. It c onsis t s of 3 s e ctio n s . Section A Directions: This s e ction is to test your abi li ty to give proper respons e . There are 5 recor...
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