两个逻辑题目，新东方的。请指教 - ChaseDream

以下是引用jdxf在2003-10-9 22:10:00的发言：
新东方SECTION16最后一道.

  The recent upheaval in the office-equipment retail
business, in which many small firms have gone out
of business, has been attributed to the advent of
office equipment “superstores” whose high sales
volume keeps their prices low. This analysis is
flawed, however, since even today the superstores
control a very small share of the retail market.

Which of the following, if true, would most weaken
the argument that the analysis is flawed?
(A) Most of the larger customers for office
      equipment purchase under contract directly
      from manufacturers and thus do not participate
      in the retail market.
(B) The superstores’ heavy advertising of their low
      prices has forced prices down throughout the
      retail market for office supplies.
(C) Some of the superstores that only recently
      opened have themselves gone out of business.
(D) Most of the office equipment superstores are
      owned by large retailing chains that also own
      stores selling other types of goods.
(E) The growing importance of computers in most
      offices has changed the kind of office
      equipment retailers must stock.

答案是B，我觉得是A

SECTION 15 第13
Biometric access-control systems—those using
fingerprints, voiceprints, etc., to regulate admittance
to restricted areas—work by degrees of similarity,
not by identity. After all, even the same finger will
rarely leave exactly identical prints. Such systems can
be adjusted to minimize refusals of access to legiti-
mate access-seekers. Such adjustments, however,
increase the likelihood of admitting impostors.

Which of the following conclusions is most strongly
supported by the information above?
(A) If a biometric access-control system were made
      to work by identity, it would not produce any
      correct admittance decisions.
(B) If a biometric access-control system reliable
      prevents impostors from being admitted, it will
      sometimes turn away legitimate access-seekers.
(C) Biometric access-control systems are appropriate
      only in situations in which admittance of
      impostors is less of a problem than is mistaken
      refusal of access.
(D) Nonbiometric access-control systems—based,
      for example, on numerical codes—are less
      likely than biometric ones to admit impostors.
(E) Anyone choosing an access-control system
      should base the choice solely on the ratio of
      false refusals to false admittances.
答案是B，我觉得是C