Questions 6-7 are based on the following graph
6.Which of the following, if true about early 1990,would most help to explain the decrease, in 1990, of the percent of people commuting to jobs in downtown Allentia who do so via public transportation?
(A) The termination of a governmental subsidy to the public transportation system that serves both the city and its suburbs caused a sub-stantial increase in fares.
(B) Many new trains and buses were put into service in the public transportation system both within the city and between the city and its suburbs.
(C) Security was improved in the passenger waiting areas and on the public trains and buses used within the city as well as on those used between the city and its suburbs.
(D) Legislation was passed that increased the fre-quency of public transportation service within the city as well as between the city and its suburbs.
(E) The number of points served by the public trans-portation system both within the city and between the city and its suburbs was increased substantially byadding new routes.
7.Which of the following, if true about early 1992, could most contribute to an explanation of the change, between 1991 and 1992, in the percent of those who commute via public transportation from the outer suburbs of Allentia, as compared to the change for
the other group of commuters?
(A) The price per gallon for gasoline declined by ive percent.
(B) The cost of using public transportation, per mile traveled, increased.
(C) The number of people who commuted to work via public transportation from points in or near downtown Allentia increased.
(D) The frequency of public transportation service between the city and its suburbs decreased.
(E) The cost per mile of getting to and from work by car tripled.
8.A new and more ag美国GREssive form of the fungus that caused the
Irish potato famine of the nineteenth century has recently arisen.
However, since this new form of the fungus can be killed by
increased application of currently used fungicides, it is unlikely
that the fungus will cause widespread food shortages in countries
that currently rely on potatoes for sustenance.
Which of the following, if true, most calls into question the con-
clusion in the argument above?
(A) Though potatoes are an important staple crop in many parts
of the world, people in most countries rely primarily on
wheat or rice for sustenance.
(B) Potato farmers in many countries to which the new form of
the fungus has spread cannot afford to increase their spending
on fungicides.
(C) The new form of the fungus first began to spread when con-
taminated potato seeds were inadvertently exported from a
major potato-exporting country.
(D) Potato farmers in most countries use several insecticides on英语作文
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