PREP 题请教

conquergmat

1)

offshore oil-drilling operations entail an unavoidable  risk of an oil spill, but importing oil on tankers presently entails an even greater such risk per barrel of oil. Therefore, if we are to reduce the risk of an oil spill without curtailing our use of oil, we must invest more in offshore operations and import less oil on tankers.

A) Tankers can easily be redesigned so that their use entails less risk of an oil spill

答案是A ,但不知道这个削弱的原因

请指教

2)The cotton farm of Country Q became so productive that the market could not absorb all that they produced. Consquently, cotton prices fell. The government tired to boost cotton prices by offering farmers who took 25% of their cotton acreage out of production direct support payments up to a specified maximum per farm.

A) Depressed cotton prices meant operating losses for cotton farms, and the government lost revenue from taxes on farm profits.

Why A is correct?

[此贴子已经被作者于2006-5-26 14:26:26编辑过]

wycg

文章说TANKER漏油."importing oil on tankers presently entails an even greater such risk per barrel of oil".不好.

A就是说那个TANKER可以重新设计它必免漏油.从而削弱.