感觉把他们归入加强和削弱都不太恰当。大家说说是不是属于靠常识解题的解释题呢？
xiexie
23. A cost-effective solution to the problem of airport congestion is to provide high-speed ground transportation
between major cities lying 200 to 500 miles apart. The successful implementation of this plan would cost far less
than expanding existing airports and would also reduce the number of airplanes clogging both airports and
airways.
Which of the following, if true, could be proponents of the plan above most appropriately cite as a piece of
evidence for the soundness of their plan?
A. An effective high-speed ground-transportation system would require major repairs to many highways and
mass-transit improvements.
B. One-half of all departing flights in the nation’s busiest airport head for a destination in a major city 225 miles
away.
C. The majority of travelers departing from rural airports are flying to destinations in cities over 600 miles away.
D. Many new airports are being built in areas that are presently served by high-speed ground-transportation
systems.
E. A large proportion of air travelers are vacationers who are taking long-distance flights.
30. The price the government pays for standard weapons purchased from military contractors is determined by a
pricing method called “historical costing.” Historical costing allows contractors to protect their profits by adding a
percentage increase, based on the current rate of inflation, to the previous year’s contractual price.
Which of the following statements, if true, is the best basis for a criticism of historical costing as an economically
sound pricing method for military contracts?
A. The government might continue to pay for past inefficient use of funds.
B. The rate of inflation has varied considerably over the past twenty years.
C. The contractual price will be greatly affected by the cost of materials used for the products.
D. Many taxpayers question the amount of money the government spends on military contracts.
E. The pricing method based on historical costing might not encourage the development of innovative
weapons
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