A.
B.
C.
D.

A.
B.
C.
D.

A.\(\left( {2;1} \right);\left( { - 4;2} \right);\left( { - 14;33} \right);\left( {32;57} \right)\)
B.\(\left( { - 2;1} \right);\left( { - 4;2} \right);\left( { - 14;33} \right);\left( { - 32;57} \right)\)
C.\(\left( {2;1} \right);\left( { - 4;1} \right);\left( { - 14;33} \right);\left( { - 32;57} \right)\)
D.\(\left( { - 2;1} \right);\left( { - 4;1} \right);\left( { - 14;33} \right);\left( {32;57} \right)\)

A.\(S = \left\{ { \pm 2;\dfrac{{3 \pm \sqrt {19} }}{2}} \right\}\)
B.\(S = \left\{ {2;\dfrac{{3 + \sqrt {19} }}{2}} \right\}\)
C.\(S = \left\{ { \pm 2;\dfrac{{3 + \sqrt {19} }}{2}} \right\}\)
D.\(S = \left\{ {2;\dfrac{{3 \pm \sqrt {19} }}{2}} \right\}\)

A.
B.
C.
D.

A.\(0\)
B.\(1\)
C.\(2\)
D.\(5\)

A.\(P = {2020^{2021}}\)
B.\(P = {2021^{2020}}\)
C.\(P = 1\)
D.\(P = {2021^{2021}}\)

A.\(E = \dfrac{5}{3}\)
B.\(E =  - \dfrac{5}{3}\)
C.\(E = \dfrac{5}{2}\)
D.\(E =  - \dfrac{5}{2}\)

A.The saola and the rhino are dangerous animals in Viet Nam.
B.Both the saola and the rhino are considerate animals.
C.Viet Nam becomes more dangerous due to the saola and the rhino.
D.The saola and the rhino are thought to be endangered species in Viet Nam.

A.If the environment is more polluted, it becomes better for the animals.
B.Animals find the more polluted environment safer.
C.Animals become less safe with a more polluted environment.
D.Animals become safer with a more polluted environment.