定义：在数列\(\{a_{n}\}\)中，若满足\(\dfrac{a_{n+2}}{a_{n+1}}-\dfrac{a_{n+1}}{a_{n}}=d(n\in N^{*},d\)为常数\()\)，称\(\{a_{n}\}\)为“等差比数列”，已知在“等差比数列”\(\{a_{n}\}\)中，\(a_{1}=a_{2}=1\)，\(a_{3}=3\)，则\(\dfrac{a_{2021}}{a_{2019}}\)等于\((\quad)\)