[語文] 請各位大大幫忙看一下兩題CR，謝謝~
The population of peregrine falcons declined rapidly during
the 1950’s and 1960’s and reached an all-time low in the early 1970’s.
The decline was attributed by scientists to the widespread use of the
pesticide DDT in rural areas.
Which of the following, if true, gives the strongest support
to the scientists claim?
(A) DDT was not generally in use in areas devoted to heavy industry.
(B) In the time since the use of DDT was banned in 1972,
the population of peregrine falcons has been steadily increasing.
(C) Peregrine falcons, like other birds of prey, abandon eggs that
fallen out of the nest, even if the eggs remain intact.
(D) Starling, house sparrows, and blue jays-birds the peregrine
falcon prey on—were not adversely affected by DDT in their habitats.
(E) Other birds of prey, such as the osprey, the bald cage, and
the brown pclican, are found in the same area as is the peregrine falcon.
答案是A 但我選B
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In the 1960’s long-term studies of primate behavior often used as
subjects tamaris, small monkeys that were thought ideal because they
require only small cages, breed frequently, and grow quickly.
Field studies were not used because they were costly and difficult.
Tamarinds were kept caged in male-female pairs, because otherwise,
serious fights erupted between unrelated females. On the basis
of the fact that breeding occurred, tamarinds were viewed as monogamous.
The view taken by the researchers concerning the monogamy of tamarinds
deepened on a questionable assumption.
Which of the following could have served as that assumption?
(A) The suppression of fighting between related females serves to
protect their common genetic inheritance.
(B) Adult male tamarinds contribute to the care of tamarind infants.
(C) The social system of tamarinds requires monogamous pairing.
(D) Male tamarind monkeys do not display aggressive behavior in the wild.
(E) The way the tamarinds were kept in cages did not affect their
mating behavior.
答案是E，但我選C
請各位大大幫我分析一下，謝謝~ 感恩~ ^_^
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