胃溃疡的特点是（） A.发病年龄比十二指肠溃疡年轻 B.好发于胃大弯 C.基

International free trade occurs when there are no barriers to trade. Countries can get a lot of benefits from free trade. (31) , all countries choose to adopt protection policies to some extent In this essay, I will give (32) of the arguments in favour of world free trade, describe the methods for the trade protection policies (33) countries erect to protect domestic industries and give the arguments which can be put (34) to justify protectionist policies.
Tariffs are taxes on (35) products. Sometimes, tariffs are known (36) imports duties and customs duties. They can be used (37) raise revenue. But, they are usually used to (38) imports and also to help domestic producers. The effect of imposing (39) tariff is to raise price for domestic consumers, and some consumers will switch consumption (40) imported goods to domestically produced substitutes. (41) are two types of tariffs. One is percentage taxes, it is based on
percentage of value of goods. (42) one is specific (fixed sum taxes), it is based on a fixed tax (43) unit or weight. Quota is a limit on the supply of goods or services. It can be imposed on exports. The domestic market share will increase because of (44) a limit on the quantity of imported goods. However, the price of protected goods will also rise because a quota is to reduce supply. Voluntary export restraint or restriction (45) similar to a quota, but this time the limit on imports arises from a voluntary agreement (46) the exporting and importing countries. For example, the UK had an agreement with Japanese car (47) that they should not take (48) than 10 percent of the UK car market. Exchange control means that a government control on foreign currency controls importers access to foreign currency. This is a (49) which was used by a number of European countries, (50) the UK, in the 1960s and 1970s and is still found in some developing countries.

某商店被盗，警方掌握的线索如下：　　①甲、乙、丙三人中最多有一个是罪犯　　②如果甲是罪犯，乙肯定是同犯　　③盗窃案发生时，丙正在家里吃饭。可见()。

A．甲、丙都不是罪犯
B．甲是罪犯
C．乙是罪犯
D．丙是罪犯

青壮年急腹症哪种病好发（）。

A.绞窄疝

B.急性阑尾炎

C.胆石症

D.乙状结肠扭转

E.肠套叠

乙注册会计师在确定控制测试的时间时，下列提法中不恰当的是( )。

A．对于旨在减轻特别风险的控制，即使在本期未发生变化，乙注册会计师也不应依赖以前审计获取的证据

B．乙注册会计师如果将询问与检查或重新执行结合使用，通常能够获得控制有效性的审计证据

C．乙注册会计师即使已获取控制在期中运行有效性的审计证据，仍需将控制运行有效性的审计证据合理延伸至期末

D．乙注册会计师观察某一时点的控制，则可获取该控制在被审期间有效运行的审计证据

蠕变