下列各组软件中,完全属于应用软件的一组是________。
A. UNIX,MS-Office 2010,MS-DOS
B. AutoCAD,Photoshop,PowerPoint 2010
C. Oracle,FORTRAN编译系统,系统诊断程序
D. 物流管理程序,Sybase,Wind 7
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CPU的中文意义是________。
A. 控制器
B. 不间断电源
C. 算术逻辑部件
D. 中央处理器
下列叙述中,正确的一条是________。
A. CPU能直接读取硬盘上的数据
B. CPU能直接与内存储器交换数据
CPU由存储器和控制器组成
D. CPU主要用来存储程序和数据
[音频]We all know that having friends is 1.___________, but why do we2._______ friendships with some people and not others? In some ways, the answer is 3. ___________: you become friends with someone because you have things in 4. ____________. Maybe you both like the same5. __________ team. Or perhaps you both love to play video games. Or maybe your 6. ____________ are similar: you’re a bit 7. ________ and the other person is, too.
架空线路是由()等主要元件组成的。
A. 导线
B. 电杆
C. 绝缘子
D. 金具