建设项目现金流量表由现金流入、现金流出和( )构成，其具体内容随项目的不同而不同。

实验室可以用右图所示的装置制取乙酸乙酯．回答下列问题：

（1）在大试管中配制一定比例的乙醇、乙酸和浓硫酸的混合液的方法是：______

（2）饱和碳酸钠溶液的主要作用是______

（3）若要把制得的乙酸乙酯分离出来，应采用的实验操作是______．

（4）生成乙酸乙酯的反应是可逆反应，反应一段时间后，就达到了该反应的限度．下列描述能说明乙醇与乙酸的酯化反应已达到化学平衡状态的有（填序号）______．①混合物中各物质的浓度不再变化；②单位时间里，生成1mol乙醇，同时生成1mol乙酸；③单位时间里，生成1mol乙酸乙酯，同时生成1mol．

下列各句中加点的熟语使用不正确的一项是

A．在批评与自我批评中，我们当面鼓对面锣，不拐弯抹角，不绕圈子，敢讲问题，触及灵魂，有效地保证了党组织的纯洁性。

B．学生答诗歌鉴赏题时，由于表达能力不强，经常出现言不由衷的情况。所以在理解诗歌的基础上还要掌握一定的鉴赏术语。

C．经济适用房凭借政策优势获得了“独一无二”的价格竞争力，而资源稀缺的特殊性也使经济适用房的销售一直是“皇帝女儿不愁嫁”。

D．陈水扁当局在高中历史课程纲要中，将“台湾史”从“中国史”中独立出来，是想用意识形态取代历史，是数典忘祖。

公务员法规定：担任（）、县级机关及其有关部门主要领导职务的公务员，应当实行地域回避。

麻类露浸脱胶

Recently I paid a visit to Harvard University, where there are top class scientists and professors and the best academic system in the world.

I was pretty shocked when I first stepped onto the campus. Well, it's not even really a campus. It's more like a district in a small town.

Harvard's main buildings are from the 18th century. They look very old and simple. You might even say they're a little shabby. They don't fit the modern idea of university at all. The buildings are surrounded by grass and trees, so I felt as if I had walked into a medieval castle. But when I looked across the street, busy shops and in-fashion students made me feel like I was in the 21st century again. It creates a strong contrast and brings a special atmosphere to the school.

Our tour guide Gary took us around and told us: "You see this grass field in the center of the school? Here is where they host their graduation ceremony. They just set up tents and benches and have a very simple ceremony. Unbelievable! Who would think the most talented students just graduate on the lawn?

I saw some students put a blanket on the grass and lie down to read a book. When I listened to the soft sound of pages turning, along with chirping of the birds, I felt very calm. There was no competitive feeling at all.

Harvard has the world's first computer in its science center and there are hundreds of high-end computers too. Its religion and the literature departments are also among the best. It is the perfect mix of tradition and new technology. It makes Harvard a very attractive place to study in.

I hope one day I'll attend my dream school—Harvard.

45．The article is mainly about        . 

A．the author's campus life in Harvard     B．the author's impression of Harvard

C．Harvard's old buildings                              D．the academic system at Harvard

46．The author was most impressed by        , according to the article. 

A．Harvard's mix of tradition and new technology

B．the classes held on beautiful lawns at Harvard

C．Harvard students not taking their graduation ceremony seriously

D．the feeling of not living in modern society on the campus

47．What can we conclude from the article? 

A．Harvard campus is actually a district of a big city.

B．There are no competitions at Harvard University.

C．Graduation ceremonies are not complex at Harvard.

D．All Harvard buildings date back to the 18th century.

48．According to the article, in which fields is Harvard top in the world? 

A．Literature, arts, and law.              B．Religion, law and arts.

C．Literature, arts and computer science.   D．Religion, computer science and literature.