[填空题]The critics of the flat tax system argue that the wealthy people in the United States would be most benefited rather than people with low income.

[单项选择]Many critics of the current welfare system argue that existing welfare regulations foster family instability. They maintain that those regulations, which exclude most poor husband and wife families from Aid to Families with Dependent Children assistance grants, contribute to the problem of family dissolution. Thus, they conclude that expanding the set of families eligible for family assistance plans or guaranteed income measures would result in a marked strengthening of the low-income family structure. If all poor families could receive welfare, would the incidence of instability change markedly The unhappily married couple, in most cases, remain together out of a sense of economic responsibility for their children, because of the high costs of separation, or because of the consumption benefits of marriage. The formation, maintenance, and dissolution of the family is in large part a function of the relative balance between the benefits and costs of marriage as seen by the individual me
A. those regulations encourage family dissolution
B. the low-income families are not given enough family assistance grants
C. they expand the set of families eligible for family assistance
D. the guaranteed income measures are increased

[填空题]

• A．Flat Tax
  Income tax is a direct tax which is levied on the income of private individuals．There are various income tax systems that exist．ranging frOm a flat tax to an extensive progressive tax systern．
  A flat tax，also cal led a proportional tax，is a system that taxes．Usual ly the flat tax is proposed to k ick in at a certain income level，or to exempt income below that level，so that the lowest-income members of society don’t need to pay income tax．
  Proposed flat taxes usually allow little or no exemption of earned income besides the bottom-level exemption．
  Advocates of a flat tax claim that it will end unfair discrimination．They also argue that flat taxes are easier(and cheaper)to administer and comply with than complex，graduated taxes．Most political parties that advocate the introduction of a flat tax are on the right of the pol itical spectrum．
• B．Progressive Tax
  A progressive tax，or graduated tax，is a tax that is larger as a percentage o