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与地龙抗血栓作用相关的药理作用( )
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某机械厂生产某种零件，经二道工序制成，某月份投1000件(原材料在生产开始时一次投入)，完工产品800件，企业月末账面保留的在产品成本2000元，该企业在产品成本的计算采用“约当产量法”，有关资料如下： 表1：在产品盘存表 工序 工时定额 在产品盘存数(件) 1 15 100 2 25 200 合计 40 300 表2：生产费用资料表 单位：元 成本项目 月初在产品成本 本月发生费用 原材料 100000 800000 工资及附加 20000 100000 其他 10000 60000 根据上述资料回答下列问题(每一小步计算请保留两位小数，再进行下步计算)。 本期应调减的完工产品成本为( )元。
较长时间用药可引起血小板减少症的药物是( )
Questions 14 to 16 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Which of the following statements is NOT true, according to the passage you have just heard
With the growth of the Web, many people have come to view the Internet as a handy source of information. Yet there are limits to the depth of the data that can be mined from cyberspace. Ask a search engine that runs on your favorite Web browser to tell you where you can buy a red convertible in Miami for under $35,000. Such a car does exist. But getting the answer on line is a daunting task that often entails multiple searches. Now the Web’s creator, British-born Tim Berners-Lee, has set about solving such problems. The goal is to provide for the automatic exchange of any type of content between many kinds of software programs, applications and databases and, when appropriate, between people. He compares the online situation today with the way things were when the first Web sites were launched almost exactly a decade ago. Before the Web created a Common programming language, accessing each database required users to learn a special set of internal rules, which could be quite arcane. Consequently, only computer mavens bothered to get Internet addresses. But after Berners-Lee developed the "hypertext" system of linking documents and other information with the now-familiar Web tags, his creation became the fastest-growing data gathering system in human history, reaching 30 million active domain names in 2001. Now, history is repeating itself. Berners-Lee has dubbed his new project "the semantic Web." While the coding concepts are complex, the idea behind them is simple enough. The semantic Web would allow programs to browse the Internet and trade data without any direct human intervention. In theory, that could turn all of cyberspace into a unified interactive computer. "The semantic Web represents a long-term goal to change and improve the way in which computers and users work together, as well as the way computers work with other computers," Berners-Lee told a Harvard graduate school seminar the other day. "Instead of searching for words, we search for concepts that tie things together." Berners-Lee and his programming team seek to provide "intelligent agents" the capacity to understand the underlying meaning -- the "semantics" -- of the information they roam through to make their searches more meaningful and efficient. The initial step is to create standards that allow users to add descriptive tags, or "metadata," to Web content, making it easier to pinpoint exactly what you’re looking for. Next, methods will need to be found to enable different programs to relate to metadata from various Web sites. Finally, programmers will be able to craft applications that infer vital facts from the ones they’ve been given. And finding that convertible will be much easier. A smarter Web is meant to be______.
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