| 问个逻辑题，TEST 20－9
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?
(A) Will the new computer system require fewer oper-
ators than the current system requires?
(B) Has Mannis Corporation always stored its archival
records in a computerized format?
(C) Will the new computer system that Mannis plans
ensure greater security for the records stored
than does Mannis’ current system?
(D) Will Mannis’ current collection of archival records
be readily transferable to the new computer
system?
(E) Will the new computer system be able to perform
many more tasks than the current system is able
to perform?
答案是D。请问怎样排除C呢？我做这道题的时候在C和D犹豫了半天，最后选了D。但是心里觉得C也是对的。请指点迷津。谢谢。 | 
