有一个问题困惑，大神进来一看

roylist

When people evade income taxes by not declaring taxable income, a vicious cycle results. Tax
evasion forces lawmakers to raise income tax rates, which causes the tax burden on nonevading
taxpayers to become heavier. This, in turn, encourages even more taxpayers to evade income
taxes by hiding taxable income.
The vicious cycle described above could not result unless which of the following were true?
(A) An increase in tax rates tends to function as an incentive for taxpayers to try to increase their
pretax incomes. 税率提高导致纳税人努力提高税前收入。回答yes，削弱，因为可以收到的税，就
不用继续增加税率了，回答no，加强
(B) Some methods for detecting tax evaders, and thus recovering some tax revenue lost through
evasion, bring in more than they cost, but their success rate varies from year to year. 回答yes，
加强，因为别的方法得不偿失，所以要增加税率，回答no, 无法判断，因为不知道会不会使用这些
手段
(C) When lawmakers establish income tax rates in order to generate a certain level of revenue,
they do not allow adequately for revenue that will be lost through evasion. 这个可以
(D) No one who routinely hides some taxable income can be induced by a lowering of tax rates to
stop hiding such income unless fines for evaders are raised at the same time. 回答yes，不一定能
解决问题，以为不一定能够得到预期的税收；回答no，加强
(E) Taxpayers do not differ from each other with respect to the rate of taxation that will cause them
to evade taxes. 回答yes，无关，回答no,无关again

看不懂 那位大神帮我讲解一下

qlxqx

allow for 的意思是考虑到，C的意思是：lawmaker在制定rate时候没有考虑到有人会逃税。如果lawmaker考虑到大家会逃税，就不会一味的提升rate，从而导致恶性循环了。

roylist

qlxqx 发表于 2014-6-3 00:31
allow for 的意思是考虑到，C的意思是：lawmaker在制定rate时候没有考虑到有人会逃税。如果lawmaker考虑到 ...

一阵见血，谢谢啊！