Hereis![ ] A. it B. you

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.

人体在运动时，关节的灵活性和牢固性非常重要。下列关于关节结构与灵活性和牢固性的说法中，错误的是[ ]

A．关节头和关窝一凸一凹

B．关节头与关节窝之间有空隙，运动时容易造成脱臼

C．关节囊由坚韧的结缔组织构成，还附有许多韧带

D．关节面上覆盖着光滑和有弹性的关节软骨

依法必须进行招标的项目，招标人应当自确定中标人之日起（）日内，向有关行政监督部门提交招标投标情况的书面报告。

A.7

B.15

C.20

D.30

抗美援朝的战场上，有些志愿军战士到傍晚时眼睛看不清东西，你认为应多给志愿军提供的食品是（　　）

A．动物肝脏和胡萝卜

B．水果和蔬菜

C．黄瓜和西红柿

D．鸡、鱼、肉、蛋

利用起泡排序的方法对序 * * 8，19，65，13，97，49，41，95，1，73进行排序，第二趟起泡后的顺序应为

A．19，38，13，65，49，41，95，1，73，97

B．19，13，38，49，41，65，1，73，95，97

C．13，19，38，41，49，1，65，73，95，97

D．13，19，38，41，1，49，65，73，95，97