A.20%B.10%.C.30%D.40%.
A.Thể ba.B.Thể một.C.Thể tam bội.D.Thể tứ bội.
A.Adênin.B.Xitozin.C.Guanin.D.Uraxin.
A.\(3a\)B.\(6a\)C.\(9a\)D.\(12a\)
A.\(1 - x\)B.\(x - 1\)C.\(3 - x\)D.\(x - 3\)
A.\(x = - \dfrac{7}{2}\)B.\(x = - \dfrac{2}{7}\)C.\(x = \dfrac{2}{7}\)D.\(x = \dfrac{7}{2}\)
A.\(8\)B.\(\dfrac{1}{8}\)C.\( - 8\)D.\( - \dfrac{1}{8}\)
A.\( - \dfrac{1}{2}\)B.\( - \dfrac{1}{4}\)C.\(\dfrac{1}{2}\)D.\(\dfrac{1}{4}\)
A.\(2\)B.\( - 1\)C.\(1\)D.\( - 2\)
A.\(\dfrac{{3{x^2} + 7{x^3} - 9x + 2}}{{{x^3} + 3x - 1}}\) B.\(\dfrac{{3{x^3} + 7{x^2} - 9x + 3}}{{{x^2} - 3x + 1}}\)C.\(\dfrac{{7{x^3} + 3{x^2} - 9x + 3}}{{{x^3} + 3{x^2} - 1}}\) D.\(\dfrac{{3{x^3} + 7{x^2} - 9x + 2}}{{{x^2} + 3x - 1}}\)
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