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【单选题】
PLC的编程语言有很多种,该图采用的编程语言是A.
梯形图
B.
功能块图
C.
顺序功能图
D.
指令语句表
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】某32位计算机,CPU主频为800MHz, Cache命中时的CPI为4, Cache块大小为 32字节;主存采用8体交叉存储方式,每个体的存储字长为32位、存储周期为40 ns;存储器总线宽度为32位,总线时钟频率为200 MHz,支持突发传送总线事务。侮次读突发传送总线事务的过程包括:送首地址和命令、存储器准备数据、传送数据。每次突发传送32字节,传送地址或32位数据均需要一个总线时钟周期。请...
【单选题】Under D/P, all the documents, and usually title to the goods, are released to the buyer upon ______.
A.
his acceptance of the draft for payment at a specified later date
B.
his payment of the amount specified under reserve
C.
his partial payment of the bill amount
D.
his payment of the amount specified
【简答题】若存储器的数据总线宽度为8位,存取周期为100ns,则存储器的带宽是多少?
【简答题】Directions: You are asked to write 160～200 words under the title of The Advantages and Disadvantages of Private Tutoring. You should base your composition on the outline given in English below: Outlin...
【简答题】After his death, Wallace Stevens s previously uncollected works appeared under the title
【单选题】The best title for this passage might be______.
A.
A Company under Fire
B.
A Debate on Moral Decline
C.
A Lawful Outlet of Street Culture
D.
A Form. of Creative Freedom
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