对于无形资产，应在会计报表中披露的有 ( )。A．判断无形资产使用寿命是否确定的依

张强同学向图书馆借阅《红楼梦》、《苏州府志》、《天工开物》三本书，计划写一篇小论文。下列选项最有可能成为这篇论文主题的是

A．唐代苏州的风俗　

B．元代的海外贸易

C．明清江南的手工业　

D．晚清的文学创作

Most taxpayers have had enough income tax collected by their employers during the year. So they do not (36) any money. In fact, most Americans get some money back. Last year, the Internal Revenue Service returned at least some money to more than (37) Americans paying individual income tax.
The United States has what is called (38) . Tax rates increase as (39) increase. This year, people earning more than (40) are taxed at the highest rate.
Earnings above that amount are taxed at (41) . Earnings below that amount are taxed at lower rates.
Individuals who earn less than (42) pay no income tax. But they do pay (43) , Medicare and other taxes.
There are many different ways for people and businesses to reduce their (44) Most homeowners, for example, can reduce their taxes a little by reporting to the I.R.S. the interest they pay (45) . This is called a (46)
In 2004, personal income taxes provided the government with most of its money: (47) of the budget. Social security and other (48) taxes provided (49) . Other forms of income include (50) , money borrowed to (51) and special taxes on (52) .
But income from taxes did not provide enough to pay for government spending. The I.R.S. says the budget deficit for 2004 was about (53) dollars.
Preparing tax documents can be complex. The I.R.S. estimates that taxpayers need an average of about 13 hours to prepare tax documents. And that is just for the basic tax form. For business, the I.R.S. estimates an (54) needs more than 50 hours. This is why a lot of Americans pay (55) to complete their tax documents for them.

企业生产经营预算通常是在（）的基础上进行的。

A.销售预测

C.生产预算

B.现金预算

D.产品成本预算

主动脉夹层在主动脉血管造影的直接征象是（）

A.主动脉壁增厚

B.双腔改变影像

C.溃疡样充盈缺损

D.多发真腔

E.主动脉瓣关闭不全

粗肌丝主要有（）分子组成，分子的球状部裸露在粗肌丝主干的表面，形成（）。