在计算机系统中,构成虚拟存储器()。
A. 只需要硬件 B.只需要软件 C.不需要硬件和软件 D.既需要硬件也需要软件
The customer asks your project to be completed 6 months earlier than planned.You think this target can be reached by-overlapping project activities. This approach is known as ().
A. balance engineering
B. fast-tracking
C. leveling
D. crashing
统一建模语言(UML)图中,()描述了以时间顺序组织的对象之间的交互动态视图。
A. 序列图 B.通信图 C.活动图 D.交互概览图
MRI显示胸6~10段脊髓增粗,T1WI呈略低信号,T2WI呈不均匀高信号,界限不清,Gd-DTPA增强扫描有不均匀强化,下列哪种病变可能性最大:()
A. 髓外硬膜内神经纤维瘤
B. 椎管内神经鞘瘤
C. 髓内胶质瘤
D. 椎管内转移瘤
E. 脊柱结核