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Social Studies, 22.06.2019 12:00
What greek scientist created a screw to move water for irrigation?
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Social Studies, 22.06.2019 19:00
Which of these was not a component of the american system? a) protective tariff b) internal improvements c) universal manhood suffrage eliminate d) the 2nd bank of the united states
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Social Studies, 22.06.2019 22:20
Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?
Answers: 3
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