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已知:△ABC内接于⊙O,D是 BC^ 上一点,OD⊥BC,垂足为H.
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同类题3

阅读下列材料:

材料一  由于被剥夺了进入美国市场的机会,为了支持其自身工业发展并照顾其自身的失业问题,其他工业国家不得不寻求发掘新的市场。它们还通过各种限制措施,承担起保护其国内市场免受进口冲击的重担。……其直接后果就是以关税、进口配额和国际协定等形式出现的一系列报复性和防御性措施的出台。

                                           ——富兰克林·罗斯福《向前看·在路上》


材料二  关贸总协定只是……一个“临时协定”。但它仍只是一个准国际组织,这就是为什么在乌拉圭回合多边贸易谈判中,人们还在酝酿筹建一个新的真正的多边贸易体系的原由。美国就曾利用最惠国待遇原则的例外,无理地取消过波兰的最惠国待遇;许多缔约国也常利用一般禁止量限制原则的例外,大量采用非关税壁垒的措施,推行贸易保护主义等等。在解决国际贸易纠纷方面,关贸总协定的主要手段是协商,最后只是缔约方的联合行动,至今仍没有具备法律约束性的强制手段。这也是许多重大国际贸易争端无法真正解决的重要原因。

——《关贸总协定知识读本》

材料三  WTO协定第2条规定:“包括在附件1、2、3中的各项协议及附属法律文件(以下简称“多边贸易协议”)是本协定的组成部分,对所有成员方均具约束力。”第15条又规定:“各成员方都要保证使其法律、规章与管理办法均符合本协定附件中规定的义务。”从而奠定了WTO法律制度或规则优于各国国内法的宪法性原则。

                                ——赵维田《世界贸易组织(WTO)》

材料四 “本协议缔约方,认识到在处理其贸易和经济领域的关系时,应当是为了提高生活水平,保证充分就业和大幅度稳步提高实际收入和有效需求,扩大商品和服务的生产和贸易,……进而认识到需要积极努力以确保发展中国家,特别是其中的最不发达国家,在国际贸易增长中享有一个与其经济发展需要相适应的份额;热切希望达成互惠和互利的安排,大量减少关税和其他贸易壁垒,消除国际贸易关系中歧视性待遇……。”

                                                     ——《世界贸易组织协定》

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同类题5

阅读下面短文,根据内容,补全表格中所缺的信息。

Street Markets Around the World

    There are many ways of shopping. You can shop by telephone, by post or through your home computer, but for many people, the most exciting way to shop is also the most traditional—at a street market. You can find markets anywhere in the world. Here are four of them:

    There are many "floating markets" in Asia; perhaps the most unusual(非同寻常) is in Thailand(泰国), at a place called Damned Saduak. It's open from six in the morning to the noon every day. People sell fresh fruit from their boats.

    Many Belgians(比利时人) say that the Grand Place is the most beautiful square in the world. It's the home of a colorful flower market. It's open every day except(除了) Monday. On Monday, instead of(替代) flowers, there's a wonderful bird market.

    One of the world's famous markets is in Mexico City(墨西哥城)—the Sonora Market. You can buy toys, birds, herbs(草本) and medicine. There're all kinds of things. It's open every day from early in the morning till late at night.

    In England, on Saturday and Sunday thousands of young people from all over London travel to the Camden Market—it's the place to go for street fashion, CDs and tapes. Many people also go there for fun.

Names

____

Feature(特征)

Things to Sell

Open Time

the Damned Saduak

Thailand

____

fresh ____

Every day

____

Belgium

beautiful

____

From____ to Sunday

birds

Monday

the Sonora Market

Mexico

____

all kinds of

____

Every day

the Camden Market

____

fashionable

fashion things

Every ____