单选题 Mannis Corporation's archival records are stored in an obsolete format that is accessible only by its current computer system; thus they are inaccessible when that system is not functioning properly. In order to avoid the possibility of losing access to their archival records in the case of computer malfunction, Mannis plans to replace its current computer system with a new system that stores records in a format that is accessible to several different systems.
The answer to which of the following questions would be most helpful in evaluating the effectiveness of the plan as a means of retaining access to the archival records?

【正确答案】 D
【答案解析】[解析] 本题为典型的“B,A”型,就实现某个目的而提出一个解决方法,评价的思路要么为“A可行或有意义吗”,要么为“有其他原因影响B吗”。而(D)指出“Mannis现有档案记录能否立即转送到新计算机系统?相当于说“A可行吗”,因此(D)可以作为一个很好的评价;(C)易误选,但(C)讨论的是数据获取的安全性问题,与本题问题目的“评价该计划可行性”无关,因此(C)不正确。