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大侠们,帮我看2道Last题

大侠们,帮我看2道Last题,不胜感激:
18. All of the cargo ships of the Blue Star Liner are over 100 meters long,
and all of its passenger ships are under 100 meters long. Most of the ships
of the Blue Star Line were built before 1980. All of the passenger and cargo
ships of the Gold Star Line were built after 1980, and all are under 100 meters
long. The dockside facilities of Port Tropica, which is open only to ships of these two lines, can accommodate only those ships that are less than 100 meters long. The S.S. Coral is a cargo ship that is currently docked at Port Tropica

If the statements above are true, which one of the following must be true on the basis
of them?

(A) The S.S.Coral was built after 1980.
(B) The S.S.Coral belongs to the Blue Star Line.
(C) Port Tropica is served only by cargo ships.
(D) Port Tropica is not served by ships of the Blue Start Line.
(E) All of the ships of the Blue Star Line are older than any of the ships of the Gold Star Line.


Questions 24-25

  Statistician Changes in the Sun's luminosity correlate exceedingly well with average land temperatures on Earth. Clerly—and contrary to
accepted opinion among meteorologists—the Sun's lumionsity essentially controls land temperatures on Earth.

  Meteorologist: I disagree Any professional meteorologist will tell you that in a system as complicated as that giving rise to the climate,
no significant aspect can be controlled by a single variable

24. The rejection by the meteorologist of the statistician's conclusion employs which one of the following techniques of argumentation?

(A) supporting a conclusion about a specific case by invoking a relevant   generalization
(B) producint a single counterexample that establishes that a generalization is   false as state
(C) reanalyzing a correlation as reflecting the multiple effects of a single cause
(D) rejecting a conclusion because it is a proposition that cannot be   experimentally tested
(E) pointing out that potentially unfavorable evident has been systematically   neglected

25. The reasoning in the meteorologist's counterargument questionable because that argument

(A) rejects a partial explanation, not because it is incorrect but only because it is not complete
(B) fails to distinguish phenomena that exist independently of a particular   system from phenomena that exist only as part of the system.
(C) calls into question the existence of a correlation when the only real issue is that of how to interpret the correlation
(D) dismisses a hypothesis on the grounds that is fail to deal with anymatters   of scientific significant
(E) appeals to the authoritativeness of an opinion without evaluating the merit of a putative counterexample



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18、A。因为码头只是适用于小于100米长的船,而B的货船都长于100。其他的悬想不对。
24、C。气象学家说明引起一种想象的还有其他因素。
25、E。
请讨论!
Robert之家-----我的家园

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18 D 因为码头只 是适用于小于100米长的船,而B的货船都长于100。其他的悬想不对
24 A - by invoking a relevant generalization

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不行,我是手误。qiufeng1990你得让我将18题改过来。
24、能详细解释一下吗?
Robert之家-----我的家园

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我也不是十分肯定:
any professional meteorologist will tell you that in a system as complicated as that giving rise to the climate, no significant aspect can be controlled by a single variable
1. ANY ..... that no aspect can be.... variable (a relevant generalization)
2. in a system as complicated as that giving rise to the climate (a specific case)

C)并没有 reanalyzing a correlation 。。。multiple effects of a single cause

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绝对有道理。我回去后,查查书,看答案到底是哪个。
Robert之家-----我的家园

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