GRE出国考试模拟试题20

文章作者 100test 发表时间 2007:02:25 20:05:59
来源 100Test.Com百考试题网

SECTION 6
Time –30 minutes
25 Questions
1.Joyce: Three years ago the traffic commission
modified our towns busiest intersection for
better visibility, a commendable effort to cut
down on traffic accidents there.
Gary: Over the past three years there have been
more, not fewer, traffic accidents per week at
that intersection, so the modification has
increased the likelihood of accidents there
The answer to which of the following questions
would be most useful in evaluating Garys argument?
(A) What proportion of the towns drivers involved
in accidents that occurred prior to the
modification suffered personal injury in their
accidents?
(B) How long, on average, had the members of the
traffic commission held their offices when the
modification was implemented?
(C) Do a majority of the towns residents approve of
the traffic commissions overall performance?
(D) What measures have nearby towns taken within
the last three years in order to improve visibil-
ity at dangerous intersections?
(E) How has the volume of traffic at the towns
busiest intersection changed over the last three
years?
2. Women make up the majority of the population in the
country, and many of the prescriptions written by
doctors for tranquilizers are for women patients. The
testing of these drugs for efficacy and the calibration
of recommended doses, however, was done only on
men. Not even the animals used to test toxicity were
female.
The statements above, if true, best support which of
the following as a conclusion?
(A) Some tranquilizers are more appropriately pre-
scribed for women than for men.
(B) There have been no reports of negative side
effects from prescribed tranquilizers in women
(C) Tranquilizers are prescribed for patients in some
instances when doctors do not feel confident of
their diagnoses.
(D) The toxicity of drugs to women is less than the
toxicity of the same drugs to men.
(E) Whether the recommended dosages of tranquil-
izers are optimal for women is not known.

Questions 3-8
A landscape designer has available two trees each of eight different species
—linden, maple, pine, quince, redbud, spruce, tupelo, and walnut—from which
a 0selection must be made for planting at two different locations. For planting
at each location, the designer will 0select exactly four trees, representing four
different tree species, according to the following conditions:
If quince is planted at location 1, spruce cannot be planted at location 2.
If linden and quince are planted at location 1, pine must be planted
at location 2.
If pine is planted at location 2, quince and tupelo must be planted
at location 1.
Spruce cannot be planted at location 1 unless linden and pine are planted
at location 2.
3.Which of the following is an acceptable 0selection of species to be planted
at the two locations?
Location 1 Location 2
(A) Linden, maple, pine, quince Maple, pine, tupelo, walnut
(B) Linden, pine, quince, walnut Linden, maple, tupelo, walnut
(C) Maple, quince, spruce, tupelo Maple, pine, tupelo, walnut
(D) Quince, spruce, tupelo, walnut Linden, maple, pine, tupelo
(E) Quince, spruce, tupelo, walnut Linden, pine, quince, spruce

4.If maple, spruce, and tupelo are planted at location 1,
then which of the following must be the other species
planted at location 1?
(A) Quince
(B) Redbud
(C) Spruce
(D) Tupelo
(E) Walnut
5.If maple, redbud, and walnut are planted at location 1,
then any of the following species can be planted at
location 2 EXCEPT
(A) linden
(B) pine
(C) quince
(D) tupelo
(E) walnut
6.If linden and quince are planted at location 1, then
which of the following must be true?
(A) Quince is planted at location 2.
(B) Spruce is planted at location 2.
(C) Pine is not planted at location 1.
(D) Spruce is not planted at location 1.
(E) Tupelo is planted at location 1.
7.If each of the eight species is 0selected for planting
and spruce is planted at location 2, then which of
the following must also be planted at location 2?
(A) Linden
(B) Pine
(C) Quince
(D) Tupelo
(E) Walnut
8.If each of the eight species must be 0selected for plant-
ing and quince and tupelo are planted at location 1,
then which of the following can be the other two
species planted at location 1?
(A) Maple and spruce
(B) Maple and walnut
(C) Pine and redbud
(D) Pine and spruce
(E) Redbud and walnut