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【单选题】
计算机系统的“主机”由()。A.
CPU，内存储器及辅助存储器
B.
CPU和内存储器
C.
存放在主机箱内部的全部器件
D.
计算机的主板上的全部器件
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反馈参考答案：
举一反三
【单选题】关于内力和外力作用的叙述，正确的是
A.
内力作用能量的来源主要是太阳能
B.
水滴石穿，外力作用强大，地质作用以外力作用为主
C.
内力作用进行的十分缓慢，不易被人们所察觉
D.
地表形态在内、外力相互作用下，不断发展变化
【简答题】French novelist Jules Verne (1828—1905) is often called the father of science fiction. Although he was not a great traveler himself, his characters travelled to the moon (in From the Earth to the Moon...
【简答题】什么是列车自动控制系统
【单选题】Walt Whitman is often called the poet of American democracy(民主). He lived during the American Civil War, and he admired president Abraham Lincoln very much. Whitman was the first American poet who wro...
A.
he wanted to sing a song for himself
B.
he was very proud of himself
C.
his strong feeling towards the true equality among all people
D.
it is God that created man
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