Spending on research anddevelopment by United States businesses for 1984 showed an increase of about 8percent over the 1983 level. This increase actually continued a downward trendevident since 1981 – when outlays for research and development increased 16.4percent over 1980 spending. Clearly, the 25 percent tax credit enacted byCongress in 1981, which was intended to promote spending on research anddevelopment, did little or nothing to stimulate such spending.
问
The conclusion of the argument above cannot be trueunless which of the following is true?
最终答案不选E（
Tax credits market forspecific investments are rarely effective in inducing businesses to make thoseinvestments.）原因是很多人解释，E的答案很泛，几乎是对结论的改写。
但是同样另外一题：
130. Bank depositors in the United States are allfinancially protected against bank failure because the government insures allindividuals' bank deposits. An economist argues that this insurance is partlyresponsible for the high rate of bank failures, since it removes fromdepositors any financial incentive to find out whether the bank that holdstheir money is secure against failure. If depositors were more selective, thenbanks would need to be secure in order to compete for depositors' money.
The economist's argument makes which of the followingassumptions?
答案却选：(E) Potential depositors are able to determine whichbanks are secure against failure.
我的疑惑是：
1.我认为130的E也是对条件的改写，意思几乎没变，为什么就能成为正确答案呢？
2.我当时选的是(D) The difference in the interest rates paid todeposit ors bydifferent banks is not a significant factor in bank failures，因为我觉得是排除他因，但是后来看了其他人的解释，新的理解是因为E说是PARTLY，所以不需要排除他因，所以不选D不知这样想对否？
完整的两道题：
130. Bank depositors in the United States are allfinancially protected against bank failure because the government insures allindividuals' bank deposits. An economist argues that this insurance is partlyresponsible for the high rate of bank failures, since it removes fromdepositors any financial incentive to find out whether the bank that holdstheir money is secure against failure. If depositors were more selective, thenbanks would need to be secure in order to compete for depositors' money.
The economist's argument makes which of the followingassumptions?
(A) Bank failures are caused when big borrowers defaulton loan repayments.
(B) A significant proportion of depositors maintainaccounts at several different banks.
(C) The more a depositor has to deposit, the more carefulhe or she tends to be in selecting a bank.
(D) The difference in the interest rates paid to deposit ors by different banks isnot a significant factor in bank failure
(E) Potential depositors are able to determine which banks are secureagainst failure
104. Spending on research anddevelopment by United States businesses for 1984 showed an increase of about 8percent over the 1983 level. This increase actually continued a downward trendevident since 1981 – when outlays for research and development increased 16.4percent over 1980 spending. Clearly, the 25 percent tax credit enacted byCongress in 1981, which was intended to promote spending on research anddevelopment, did little or nothing to stimulate such spending.The conclusion of the argument above cannot be trueunless which of the following is true?
(A) Business spending on research and development isusually directly proportional to business profits.
(B) Business spending for research and development in1985 could not increase by more than 8.3%.
(C) Had the 1981 tax credit been set higher than 25%,business spending for research and development after 1981 would have increasedmore than it did.
(D) In the absence of the 25% tax credit, businessspending for research and development after 1981 would not have been substantiallylower than it was. D
[url=](E) [/url]Tax credits market forspecific investments are rarely effective in inducing businesses to make thoseinvestments.
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发表于 2013-7-26 15:16:16
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