学科分类

已选分类 医学
问答题Internet is a vast network of computers that connects many of the world's businesses, institutions, and individuals. (46) The Internet, which means interconnected network of networks, links tens of thousands of smaller computer networks. These networks transmit huge amounts of information in the form of words, images, and sounds. The Internet has information on every topic.(47)Network users can search through sources ranging from vast databases to small electronic" bulletin boards", where users form discussion groups around common interests. Much of the Internet's traffic consists of messages sent from one computer user to another. These messages are called electronic mail or e-mail. Internet users have electronic addresses that allow them to send and receive e-mail. Other uses of the network include obtaining news, joining electronic debates, and playing electronic games.(48)One feature of the Internet, known as the World Wide Web, provides graphics, audio, and video to enhance the information in its documents. These documents cover a vast number of topics. People usually access the Internet with a device called a modem. Modems connect computers to the network through telephone lines. Much of the Internet operates through worldwide telephone networks of fiber-optic cables(49) These cables contain hair-thin strands of glass that carry data as pulses of light. They can transmit thousands of times more data than local phone lines, most of which consist of copper wires. In the future, the internet will probably grow more sophisticated as computer technology becomes more powerful. (50)Many experts believe the Internet may become part of a larger network called the information superhighway. This network, still under development, would link computers with telephone companies, cable television stations, and other communication systems. People could bank, shop, watch TV, and perform many other activities through the network.
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问答题简述慢性心功能不全的发病机理和病理生理有关的几个常见因素。
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问答题Directions : Your company is bringing up the consumer data up to date. Write a letter to your client to 1) ask him to fill in a form and 2) emphasize the importance of this information. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Li Ming" instead. You don' t have to write the address.
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问答题肝硬化贫血、出血倾向的机制。
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问答题试述急性左心衰竭的发病机理、临床表现、处理原则。
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问答题试述慢性肺源性心脏病急性加重期的并发症。
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问答题原发性扩张型心肌病在超声心动图上有什么表现?
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问答题简述胆红素的代谢途径。
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问答题试述传染性单核细胞增多症患者外周血象的特点
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问答题肝硬化时内分泌可发生哪些变化?
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问答题支气管哮喘持续状态应如何进行合理抢救?
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问答题简述急性白血病的诊断标准和急性髓细胞白血病的FAB分型名称?
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问答题比较不稳定型心绞痛与稳定型心绞痛在发病机理和临床表现上的不同点。
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问答题慢性呼吸衰竭患者低氧血症的原因有哪些?其氧疗原则如何?并说明理由。
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问答题试述急性AA和慢性AA的异同点?
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问答题简述SASP的药理作用及其适应证。
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问答题消化性溃疡的发病机制是什么?
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问答题ICD的临床应用。
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问答题试述支气管哮喘的定义,并简述慢性支气管哮喘的发病机制。
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问答题何谓变异型心绞痛?有何特点?如何治疗?
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