[原创]逻辑Boldface练习题-08投票

8. The survival of the publishing industry depends upon the existence of a public who will buy the printed word in the form of newspapers, books and magazines. Over the past several years, however, the advance of electronic media, particularly CD-ROMs, online computer services, and the Internet, has made information available to the public electronically without the need for printed materials. As the availability of electronic media increases and as it is more easily accessible, the public has less need for printed materials. So the publishing industry is threatened by the advance of the computer information age.

The two portions in boldface play which of the following roles?

(A) The first is the part of evidence that the argument includes, the second is the conclusion that can be drawn only from the first.
(B) The first is the second-premise that the argument includes; the second is the conclusion that is reasonably drawn form this passage.
(C) The first is the second-premise that the argument includes, the second is the inference that must be drawn from this argument.
(D) The first is the fact that must be true, the second is the inference that can be correctly drawn from this argument.
(E) The first is the part of premise that the argument depends on; the second is the conclusion that is incorrectly drawn from this argument

这题答案是D，没错。这段话的第一句是个premise，中文叫做预期假设，这是arguer立论的基础，所谓假设就是不一定对的。而第二句话，也就是第一个黑体部分是evidence，这是一个事实（fact），事实肯定是对的。第三句话是这篇argument的中间结论，即根据第一第二句话推出来的。最后一句话是inference，是沿着第三句话进一步推理出来的。实际上，inference和conclusion在非形式逻辑（就是GMAT考察的东东）上略有不同，但是差别极小，GMAT的水平还未涉及这么深，所以，大家基本可以不管啦。