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The temperature coefficient of resistivity of iron is 5.0 *10 - 3 / C;that of carbon is-0.50 *10 - 3 / C.When an iron wire and a carbon rod,each having the same 10 resistance at 20 C,are cooled from that temperature to -80 C,the new ratio of the resistance of the carbon rod to the resistance of the iron wire at the lower temperature is
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A method of gathering information through direct conversation, often used for research, assessment, or employment selection.
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Detailed written records maintained by healthcare professionals, social workers, or other practitioners about the care, services, or therapy provided to a client.
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Informal, culturally specific beliefs and understandings about the world, often passed down through generations and not necessarily based on scientific evidence.
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Factors or conditions that occur in daily life and can influence outcomes or behaviors in various contexts.
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