A computer equipped with signature-recognition software, which restricts access

游客2024-01-12  15

问题 A computer equipped with signature-recognition software, which restricts access to a computer to those people whose signatures are on file, identifies a person’s signature by analyzing not only the form of the signature but also such characteristics as pen pressure and signing speed. Even the most adept forgers cannot duplicate all of the characteristics the program analyzes.
Which of the following can be logically concluded from the passage above?

选项 A、The time it takes to record and analyze a signature makes the software impractical for everyday use.
B、Computers equipped with the software will soon be installed in most banks.
C、Nobody can gain access to a computer equipped with the software solely by virtue of skill at forging signatures.
D、Signature-recognition software has taken many years to develop and perfect.
E、In many cases even authorized users are denied legitimate access to computers equipped with the software.

答案 C

解析 Argument Construction
Situation Forgers cannot duplicate all the characteristics that signature-recognition software analyzes, including the form of a signature, pen pressure, and signing speed. Computers equipped with this software restrict access to those whose signatures are on file.
Reasoning What conclusion can be reached about computers equipped with this software? The passage states that the software detects more characteristics in a signature than the most accomplished forger can possibly reproduce. Thus, skill at forging signatures is not enough to allow someone to gain access to a computer equipped with the software.
A No information about the speed of the analysis is given, so no such conclusion can be drawn.
B Although the software would likely be of benefit to banks, we cannot conclude that it will be installed in most banks because the passage doesn’t rule out, e.g., that the software may be too costly or that there may be proprietary constraints.
C Correct. This statement properly identifies a conclusion that can be drawn from the passage.
D Although it seems reasonable to think that the software took a long time to develop, nothing in the passage justifies the claim that it took years.
E Nothing in the passage rules out the possibility that the software functions so well that authorized users will never be denied legitimate access to computers equipped with the software.
The correct answer is C.
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