Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes , no, Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes, no, Determine whether the relations represents a function, yes, no.

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恢復自動保存: ?