加入（），可使蜡的结晶凝聚变成大颗粒，以便把蜡从油中滤除。 A.丙酮 B.甲苯 C.

下列各组离子在溶液中能大量共存的是 [ ]

A. H⁺、OH^-、Na⁺、SO₄^2-

B. Fe³⁺、OH^-、K⁺、Cl^-

C. Cu²⁺、NO₃^-、Cl^-、Na⁺

D. Ba²⁺、Cl^-、CO₃^2-、Na⁺

鼻窦穿刺冲洗多用于（）

A.筛窦

B.额窦

C.上颌窦

D.蝶窦

E.蝶上筛房

Transportation and communication networks bring people together．Yet sometimes people themselves create barriers(障碍)to transportation and communication．

In some countries，laws stop people from moving freely from place to place．Over the centuries，many groups of people have been denied the freedom to travel because of their race，religion，or nationality．In the Middle Ages，for example，Jews were often forbidden to move about freely within certain cities．South Africa’s government used to require black Africans to carry passes when they travel within the country．Some governments require all citizens to carry identification papers and to report to government officials whenever they move．

Countries set up customs posts at their borders．Foreign travellers must go through a customs inspection before they are allowed to travel in the country．Usually travellers  have to carry special papers such as passports and visas(签证)．Some countries even limit the number of visitors to their country each year．Others allow tourists to visit only certain areas of the country，or they may require that travellers be with an official guide at all times during their stay．

Many of those barriers to travel also act as barriers to communication．When two governments disagree with each other on important matters，they usually do not want their citizens to exchange news or ideas freely．Countries often try to keep military or lndustrial information secret．

Today，people have the ability to travel，to communicate，and to transport goods more quickly and easily than ever before．Natural barriers that were difficult or dangerous to cross a hundred years ago can now be crossed easily．The barriers that people themselves make are not so easy to overcome．But in spite of all the different kinds of barriers，people continue to enjoy travel and the exchange of goods and ideas.

小题1:Choose the best title for the passage．

A．Progress of Human Society

B．Restrictions on Transportation

C．Functions of Communication

D．Barriers Made by People小题2:The author uses the examples in the second paragraph to tell people that_______.

A．travellers have to carry special papers such as visas

B．customs posts are necessary at the borders of the countries

C．people have been allowed to travel freely within the country

D．people have not been permitted to travel freely for various reasons小题3:Why do some governments limit the freedom of communication?Because they______.

A．intend to keep their national secrets unknown to others

B．think such freedom will lead to wars

C．often disagree with each other on important matters

D．want to show their authority over communication小题4:We may learn from the passage that_______.

A．people do not care about the removal of barriers between countries

B．people can not remove the obstacles made by themselves

C．man-made barriers are sometimes harder to overcome than natural ones

D．barriers should be taken for granted as they always exist

甲股份有限公司(以下简称甲公司)为增值税一般纳税企业，适用的增值税税率为 17%，适用的所得税税率为33%；假定不考虑其他相关税费。1998年至2002年有关固定资产业务的资料如下： (1) 1998年12月10日，收到捐赠的尚需安装的新设备一台。捐赠方提供的有关凭据标明，该设备的价值为2 200万元(含增值税额)。在该设备安装过程中，领用自产商品一批，该批商品的实际成本和计税价格均为100万元；发生安装人员工资费用2万元。12月31日该设备安装完工并交付使用。 该设备预计使用年限为5年，预计净残值为69万元，采用年数总和法计提折旧。 (2) 2002年4月11日将该设备出售，收到价款371万元，并存入银行。另以银行存款支付清理费用2万元。 要求： (1) 编制接受设备捐赠、安装和交付使用的会计分录。 (2) 计算该设备1999年、2000年和2001年应计提的折旧额。 (3) 计算出售该设备所产生的净损益。 (4) 编制出售该设备的会计分录。 (“资本公积”和“应交税金”科目要求写出明细科目；答案中的金额单位用万元表示)

下面哪位著名球星没有效力过尤文图斯（）

A.普拉蒂尼

B.巴乔

C.齐达内

D.克林斯曼