简答题“Today is Friday.” This is an opinion.简答题A deductive argument features certainty, and an inductive argument features probability.简答题“Jack and Mary always hang out on Sundays. Today is Sunday. Jack and Mary are hanging out.” This is a deductive argument.简答题“Xiao Ming is Chinese, and most Chinese eat fish. Therefore, Xiao Ming eats fish.” This is a deductive argument.简答题“Bananas are good for your health.” This is an argument.