chính phủ hiện nay có các giải pháp khác nhau trước tình hình suy thoái niện nay, vấn đề này thuộc về

Which sentence best represents the thesis of this article? a they challenge us to consider whether we can trust what we are seeing. b optical illusions may seem mysterious, but they are not unexplainable. c through science, we can learn how optical illusions work. d let’s take a look at three common optical illusions and explore the science behind each one.

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Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?