130. Bank depositors in the United States are all financially protected against bank failure because the government insures all individuals' bank deposits. An economist argues that this insurance is partly responsible for the high rate of bank failures, since it removes from depositors any financial incentive to find out whether the bank that holds their money is secure against failure. If depositors were more selective, then banks would need to be secure in order to compete for depositors' money.

The economist's argument makes which of the following assumptions?

(A) Bank failures are caused when big borrowers default on loan repayments.

(B) A significant proportion of depositors maintain accounts at several different banks.

(C) The more a depositor has to deposit, the more careful he or she tends to be in selecting a bank.

(D) The difference in the interest rates paid to deposit ors by different banks is not a significant factor in bank failures.

(E) Potential depositors are able to determine which banks are secure against failure.

E肯定是对的，但是想问D好像也有道理，因为取非后确实是对原文结论insurance的削弱啊

对D取非，说利息是银行倒闭的一个重要得因素

个人感觉对文章得结论没起什么作用，文章得思路是“国家担保客户得存款－－－客

户不顾银行是否安全－－－银行胡乱经营倒闭，因此客户多多得顾及一下银行是否安

全－－－为争夺储户银行就会采取安全措施－－不会倒闭”问一个assumption

E说潜在的储户可以决定哪个银行是安全的不会倒闭，－－－是一个架桥

D有点取非削弱的意思，但是我觉的银行利率和银行是否倒闭没有什么关系。对于结

论“客户多多得顾及一下银行是否安全－－－银行就不会倒闭”没起到什么削弱的作

用。

嗯，我没有感觉到这么细，我只是跟着题目的思路，傻乎乎选了个答案

我看到D觉得也有点像not+weaken，但是又觉的好像没什么用，题目里没有牵扯到这

个利率的事情。况且就算取非，也就是说利率是非常重要的因素，并不是仅有的因素

但是读到E我就选了E

不过C版的理解的确很细致