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【单选题】
CPU执行指令需要从存储器读取数据时,数据搜索的先后顺序是__________。A.
cache、DRAM和硬盘
B.
DRAM、cache和硬盘
C.
硬盘、DRAM和cache
D.
DRAM、硬盘和cache
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举一反三
【简答题】The town's main _______ are its beautiful mosque and ancientmarketplace. A) features B) standpoint C) lifestyle D) venues
【简答题】如图所示电路中，N为线性有源二端网络，测得A，B之间电压为9V，如图(a)所示；若连接如图(b)所示，可测得电流I =1A。现连接成图(c)所示形式，问电流I 为（）A。【图片】
【简答题】如图所示电路，元件A的伏安特性为U=I 2 +1(I＞0)，求电流I和I 1 。
【简答题】听力原文：Every Roman town had a forum at its centre, where people came together to conduct their official and religious affairs. In addition, the forum was used as a meeting place. (83)
【简答题】The town is famous for its magnificent church towers.
【单选题】What doesn't the man like about the university town?
A.
Its size.
B.
Its newspaper.
C.
Its radio station.
D.
Its weather.
【简答题】某闭合电路中，电源的电压为定值，电流I（A）与电阻R（Q）成反比例，其图象如图所示，电流I与电阻R的函数关系式为______．
【单选题】Before the telephone was ______ , man had no way of talking to each other except face to face.
A.
invented
B.
discovered
C.
installed
D.
created
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