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Passage Three In the 1840s, the Mormons (摩门教信徒), who are a religious group, travelled west searching for a new home. Many Mormons lived in the state of Illinois, but they had been badly treated and finally were forced to leave. As the Mormons travelled through the desert, they became discouraged. Then they saw a strange tree. The tree’s branches stretched out like arms. The Mormons thought the tree looked like Joshua, a hero from the Bible. The Mormons thought the arms of the tree were telling them to continue on their way; so they did. They found a new home in what is now the state of Utah. In Utah they saw trees like the one in the desert. They called them "Joshua trees." The Joshua tree was very useful. The Native Americans of the West used almost all its parts. They ate not only the fruit of the tree, but also its seeds and white blossoms. They used its leaves for shoes. From its roots they made baskets and got colours for their clothes. Settlers in the West used the Joshua tree for firewood and fences. Unfortunately, they often needed to cut down the trees. Some of the trees were as tall as 50 feet (15.6 metres). These trees were 700 or 800 years old. The Joshua tree grows very slowly. It grows only about one inch (2.54 centimetres) a year. By the beginning of the 1900s, most Joshua trees had been cut down. People were sad that this strange tree had almost disappeared. In 1936, the Joshua Tree National Park was established in California. It has many kinds of interesting desert plants, including, of course, many Joshua trees. None of these Joshua trees are 50 feet. But perhaps some day they will be. Settlers in the west used the Joshua tree for firewood and fences because （）.
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Passage Two Nick was tired of life. Every day was exactly the same. "What I need is a little adventure!" Nick thought as he waited at the bus stop one morning. Nick’s little adventure happened sooner than he had expected! While he was on the bus, reading his newspaper, the man sitting next to him suddenly pushed a large brown envelope in his hands. "Here, take this!" he murmured. Then he stood up and got off the bus before Nick could say a word. Nick sat There holding the envelope. It felt heavy. There were papers inside, or money perhaps. "I’d better hand it over to the police." He thought. There was a police station close to his office. But as he got off the bus, a man came up to him. He was obviously waiting for something. "He wants the envelope." Nick thought. Nick began to walk quickly and the man hurried after him. Nick started to run and the man began to run, too. But then, just before he go to the police station, Nick managed to lose the man in the crowds when he entered the police station, the man was no longer in sight. Inside the police station, the envelope was full of money—false money. "Obviously the man made a mistake." the inspector said, "He thought you was one of the gang! Well congratulations!" Nick felt like a hero. He could already see his name in all the paper. He could imagine an interview on television ! "However," the inspector went on, interrupting Nick’s daydreams. "I’m afraid I must ask you to keep quiet about this. We’re trying to catch some very clever thieves, and we don’t want them to know that we have some of the money. So you mustn’t say a word to anyone—even your boss! Sorry!" "So that’s that!" Nick said to himself on his way to the office. He was over an hour late. "I’ve had my little adventure, but I can’t tell anyone about it. So what’s the point I’ve even to make up an excuse to the boss!" Nick was bored because his life wasn’t ______ .
管理信息系统的基本构成可以理解为两个部分： 【12】 和计算机系统。
Passage Five It was possible to define male and female roles easily by the division of labour. Men worked outside the home and earned the income to raise their families. While women cooked the meals, there was not much opportunity for men or women to exchange their roles. But by the middle of this century, men’s and women’s roles were becoming less firmly fixed. In the 1950s, economic and social success was the aim of the typical American. But in the 1960s a new force called the counterculture (反主流文化) developed. The people involved in this movement did not value the middle-class American goals. The counterculture presented men and women with new role choices. Taking more interest in child care, men began to share child-raising tasks with their wives. Actually some young men and women moved to communal homes or farms where the economic and child care responsibilities were shared equally by both sexes. In addition, many Americans did not value the traditional male role of soldier. Some young men refused to be drafted as soldiers to fight in the war in Vietnam. In terms of numbers, the counterculture was not a very large groups of people. But its influence spread to many parts of American society. Working men of all classes began to change their economic and social patterns. Industrial workers and business executives alike cut down on "overtime" work so that they could spend more leisure time with their families. Some doctors, lawyers, and teachers turned away from high paying situations to practice their professions in poorer neighborhoods. In the 1970s, the feminist movement, or women’s liberation, produced additional economic and social changes. Women of all ages and at all levels of society were entering the work force in greater numbers. Most of them still took traditional women’s jobs such as public school teaching, nursing, and secretarial work. But some women began to enter traditionally male occupations: police work, banking dentistry, and construction work. Women were asking for equal work, and equal opportunities for promotion. Today the experts generally agree that important changes are taking place in the roles of men and women. Naturally, there are difficulties in adjusting to these changes. Which of the following best expresses the main idea of paragraph 1 ______
希赛公司的一个分支机构被分配了一个C类地址192.168.36.0/24，该分支机构现在需要分配IP地址的有财务、人力资源、销售、审计、计划、服务6个部门，每个部门一个子网，每个部门的机器数量不超过25台。请回答以下问题。 该分支机构采用VLAN实现网段的划分，请问常规做法是采用什么网络设备实现VLAN的划分和互通
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