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Which chinese invention is used to measur the strength of earthquakeswhich chinese invention is used to measure the strength of earthquakes
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According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.
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Social Studies, 22.06.2019 21:00
What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!
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Which chinese invention is used to measur the strength of earthquakeswhich chinese invention is used...
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