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6岁小儿，胸骨左缘第2肋间有2～3级收缩期杂音，肺动脉瓣区第2心音亢进，固定分裂，心电图示电轴右偏及不完全性右束支传导阻滞。 诊断为
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简述非洲地区经济一体化组织的特征。
肥胖症
笑，也是一种运动，不断地变化发展。笑的声音有大有小；有远有近；有高有低；有粗有细；有快有慢；有真有假；有聪明的，有笨拙的；有柔和的，有粗暴的；有爽朗的，有娇嫩的；有现实的，有浪漫的；有冷冷的，有热情的。如此等等，不一而足，这就是笑的辩证法。 笑有笑的哲学。笑的本质，是精神愉快。笑的现象，是让笑容、笑声伴随着你的生活。笑的形式，多种多样，千姿百态，无时不有，无处不有。笑的内容，丰富多彩，包括人的一生。笑话、笑料的题材，比比皆是，可以汇编成专集。 笑有笑的医学。笑能治病。神经衰弱的人，要多笑。笑可以消除肌肉过分紧张的状况，防止疼痛。笑也有一个限度，要适可而止，有高血压和患有心肌梗塞毛病的病人，不宜大笑。 笑有笑的心理学。各行各业的人，对于笑都有他们自己的看法，都有他们的心理特点。售货员对顾客一笑，这是有礼貌的笑，使顾客感到温暖。 笑有笑的政治学。做政治思想工作的人，非有笑容不可，不能板着面孔。 笑有笑的教育学。孔子说：“学而时习之，不亦说乎”这是孔子勉励他的门生要勤奋学习。读书是一件快乐的事。我们在学校里，常常听到读书声，夹着笑声。 笑有笑的艺术。演员的笑，是那样惬意，那样开心，所以，人们在看喜剧、滑稽戏和马戏等表演时，剧场里总笑声满座。 笑有笑的文学，相声就是笑的文学。 下列哪项是文中所提到的“笑的文学”
Wedding Customs around the World Wedding Ceremonies A wedding is celebrated with some kind of ceremony almost everywhere in the world. The ceremonies vary greatly among different nations and different religions. But whatever the form of a marriage ceremony, it serves the important purpose of announcing to the community that a male and a female have been joined in matrimony (婚姻). The wedding ceremony may be a religious one performed by a churchman. In Western societies it may be a civil ceremony performed by a civil official, such as a mayor or a judge. Or it may be only a couple’s declaration, before witnesses, of their intention to marry. In some places a transfer of property makes a marriage binding. In other places blood is drawn from the hands of the bride and groom. The blood is mixed, sealing the union. Among some people the marriage rite consists only of the bride and groom’s sharing the same food. Marriage is one of the seven important religious ceremonies of the Catholic Church. The marriage is held in a church with the service conducted by the priest in the language of the country. The couple stand at the altar (圣坛). The priest asks each in turn, "Do you take name of partner here present for your lawful wife/husband, according to the rite of our Holy Mother, the Church"In turn, each answers, "I do. " They then repeat the marriage vows after the priest. The priest blesses the union. "In the name of the Father, and of the Son, and of the Holy Spirit. Amen. " The priest sprinkles the couple with holy water and blesses the ring or rings. Many traditional customs are observed at Jewish weddings, although they are not required by Jewish law. Usually the Jewish priest, the bride and groom, and their attendants stand under a decorated cover called a chupah (犹太教举行婚礼的彩棚). The present use of the chupah began during The Middle Ages among the Eastern European Jews. The Jewish priest conducts the service. During the ceremony the bride and groom make appropriate vows and take part in the ring ceremony. The Jewish priest blesses a cup of wine, from which the bride and groom both drink. The Jewish priest talks to the couple about the sacredness of marriage and responsibilities of the bride and groom. After the Jewish priest has pronounced them man and wife, a wine glass is often placed on the floor. The groom steps on the glass and breaks it. Scholars disagree about the symbolism of the custom, but many believe that the breaking of the glass recalls the destruction of the temple in Jerusalem, reminding the couple that even at the moment of greatest joy, there may be sorrow. The Muslim marriage is a civil and religious contract between the bride and groom. The religious ceremonies and celebrations vary with the customs of the country in which the marriage is held. People of wealth begin the celebrations two or three days before the wedding and continue for two or three days after. The bride is elaborately dressed in bright colors and wears her finest jewelry. The wedding takes place at the home of the bride. The service is performed by Muslim priest, before at least two male witnesses or one male and two female witnesses and then the vows are exchanged. Wedding Customs Many of the customs associated with wedding ceremonies are based on neither church nor civil law. They developed from wedding customs of earliest times and come from many lands. The wearing of a bridal veil dates back to early Greek and Roman times. The veil was thought to conceal the bride from evil spirits. The veil is also believed to have been worn as an indication of the bride’s innocence and purity. The wedding ring is the most widely used symbol of marriage today, as it has been for centuries. The word "wedding" comes from the old English word "wed", which means "promise" or "pledge". During Anglo-Saxon times, a promise to marry was sealed when the bridegroom-to-be gave his sweetheart a ring. The ring, a circle with no begging or end, was considered a symbol of being eternal. The third finger of the left hand was chosen as the ring finger because of mistaken beliefs that a nerve runs from that finger to the heart. The best man has been explained as a survival of the ancient practice of wife capture, in which the bridegroom’s friends helped him in his struggle to carry off a wife. The bride’s attendants were supposed to protect her from being captured. The honeymoon, or holiday spent by the couple after marriage, may have had its beginnings in the idea that the first month of marriage is the sweetest. The word comes from the French phrase lune de mile, which means "moon of honey". It is believed that it was an ancient custom for a newly married couple to take a drink containing honey on each of the first 30 days of the marriage. In ancient times people drove off any unfriendly spirits around the bridal couple by making noises, lighting fires, and waving torches. Many practices that were supposed to prevent bad luck and bring blessings to the bridal pair have come down through the years. Throwing rice after a newly married couple is a very old custom. The ancients threw rice at the bride and groom to distract evil spirits. In many countries the bridal pair is showered with nuts, corn, or wheat. Tin cans or old shoes are sometimes tied to the car that carries the bride and groom away. This practice may have come out of the ancient belief that loud noises frighten bad spirits away. To assure good luck, brides often follow the old saying and wear for the wedding "something old, something new, something borrowed, something blue". Legal Requirements Every society has its own laws and requirements governing marriage. There may be regulations concerning the ages at which a couple may marry, the procedures for a license to marry, the recording of the marriage, or the type of ceremony. Each state in the United States sets its own minimum age at which a couple may marry. In most states, people must be 18 to marry without the consent of their parents. With parental consent, people may marry at 16 in most states. In most of Britain, 16 is the minimum age for marriage, and parental consent is required until the person is 18. India allows women of 14 and men of 18 to marry. The minimum age for marriage with parental consent in France is 15 for women and 18 for men, but people of 21 may marry without consent. In Italy the bride must be 14 and the groom 16. The minimum age for marriage in Japan is 16 for women and 18 for men. A marriage license is required in the United States, Canada, and many other countries. In some countries a license to marry is not required, but after the marriage take place, it must be recorded with the state authorities. Most states in the United States require a medical examination and blood test before the license is issued. Most states in ______ require a medical examination and blood test before the license is issued.
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