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● 在一个具有n个顶点的无向图中，要连通全部顶点至少需要（）条边。（）A．n B．n+l C. n一1 D． n/2

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● A project manager believes that modifying the scope of the project may provide added value service for the customer .The project manager should（）（）A. assign change tasks to project membersB. call a meeting of the configuration control boardC. change the scope baselineD. postpone the modification until a separate enhancement project is funded after this project is completed according to the original baseline

●早期的微机，普遍采用ISA总线，它适合（1）位字长的数据处理。为了适应增加字长和扩大寻址空间的需要，出现了（2）总线，它与ISA总线兼容。
（1）A．64 B．16 C．24 D．32
（2）A．STD B．PCI C．EISA D．VESA

● A hard disk (（）) much greater storage capacity than a floppy disk.（）A. provides B.grasp C.surport D.modify

●In the ISO 9126, there are six key software quality properties, including functionality,