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学科课程以学科为中心，活动课程以______为中心。
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在窗体form1上有一个驱动器列表控件Drivel，一个目录列表控件Dirl，一个文件列表控件File1，一个富文本控件Richtexbox1。要求程序运行以后，用户可以利用。Drivel选择不同驱动器，同时Dirl中显示当前选中的驱动器的目录，用户利用Dirl选择文件所在的文件夹，在Filel控件中将显示当前选中的文件夹下的文件，用户选中其中某个文件(假设为文本文件)，则该文件的内容显示在控件Richtexboxl中。补充相应的语句，使之完成所述的功能。 Private Sub Dirl_Change() 【8】 End Sub Private Sub Drive1_Change() 【9】 End Sub Private Sub Filel _Click() Dim fname AS String If 【10】 Then fname=Filel．Path & Filel．FileName Else fname=Filel．Path& "\" & Filel．FileName End If RichTextBox1．LoadFile(fname) End Sub
A factory that makes uranium fuel for nuclear reactors had a spill so bad it kept the plant closed for seven months last year and became one of only three events in all of 2006 serious enough for the Nuclear Regulatory Commission to include in an annual report to Congress. After an investigation, the commission changed the terms of the factory’s license and said the public had 20 days to request a hearing on the changes. But no member of the public ever did. In fact, no member of the public could find out about the changes. The document describing them, including the notice of hearing rights for anyone who felt adversely affected, was stamped "official use only," meaning that it was not publicly accessible. The agency would not even have told Congress which factory was involved were it not for the efforts of Gregory B. Jaczko, one of the five commissioners. Mr. Jaczko identified the company, Nuclear Fuel Services of Erwin, Tenn,, in a memorandum that became part of the public record. His memorandum said other public documents would allow an informed person to deduce that the factory belonged to Nuclear Fuel Services. Such secrecy by the Nuclear Regulatory Commission is now coming under attack by influential members of Congress. These lawmakers argue that the agency is withholding numerous documents about nuclear facilities in the name of national security, but that many withheld documents are not sensitive. The lawmakers say the agency must rebalance its penchant for secrecy with the public’s right to participate in the licensing process and its right to know about potential hazards. The agency, the congressmen said, "has removed hundreds of in nocuous documents relating to the N. F. S. plant from public view." With a resurgence of nuclear plant construction expected after a 30-year hiatus, agency officials say frequently that they are trying to strike a balance between winning public confidence by regulating openly and protecting sensitive information. A commission spokesman, Scott Burnell, said the "official use only" designation was under review. As laid out by the commission’s report to Congress and other sources, the event at the Nuclear Fuel Service factory was discovered when a supervisor saw a yellow liquid dribbling under a door and into a hallway. Workers had previously described a yellow liquid in a "glove box," a sealed container with gloves built into the sides to allow a technician to manipulate objects inside, but managers had decided it was ordinary uranium. In fact, it was highly enriched uranium that had been declared surplus from the weapons inventory of the Energy Department and sent to the plant to be diluted to a strength appropriate for a civilian reactor. If the material had gone critical, "it is likely that at least one worker would have received an exposure high enough to cause acute health effects or death," the commission said. Generally, the Nuclear Regulatory Commission does describe nuclear incidents and changes in licenses. But in 2004, according to the committee’s letter, the Office of Naval Reactors, part of the Energy Department, reached an agreement with the commission that any correspondence with Nuclear Fuel Services would be marked "official use only.\ The word "innocuous"(last sentence, paragraph 4) is closest in meaning to
在本节中，你将听到10个简短话语，请从[A]、[B]、[C]三个选项中选出一个最佳应答。每段话语后有20秒钟的停顿，以便选择答案和阅读下一小题的选项。每个话语读两遍。
列举5种临床教学过程中教师不利于学生学习的态度或行为。
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