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水肿，腰以下为甚，伴腰酸冷痛，四肢厥冷，怯寒神疲，面白脉沉，选方宜
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男，48岁。眩晕日久，失眠健忘，力下降，精神不振，腰膝酸软，舌红苔薄黄，脉弦细。治疗宜选
What is "computer literacy"？ The term itself seems to imply some extent of "knowing" about computers, but knowing what？ The current opinion seems to be that this should include a general knowledge of what computers are, plus a little of their history and something of how they operate.
Therefore, it is vital that educators everywhere take a careful look not only at what is being done, but also at what should be done in the field of computer education. Today most adults are capable of utilizing a motor vehicle without the slightest knowledge of how the internal-combustion engine works. We effectively use all types of electrical equipment without being able to tell their histories or to explain how they work.
Business people for years have made good use of typewriters and adding machines, yet few have ever known how to repair them. Why, then, attempt to teach computers by teaching how or why they work？ Rather, we first must concentrate on teaching the effective use of the computer as the tool is.
"Knowing how to use a computer is what's going be important. We don't talk about 'automobile literacy'. We just get in our cars and drive them."
In 1990, the number of jobs having nothing to do with computers in the Unite States will be reduced to ______.
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单纯甲状腺肿
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