A.\(\left( { - 4;5} \right)\)
B.\(\left( { - 4; - 5} \right)\)
C.\(\left( {4; - 5} \right)\)
D.\(\left( {5; - 4} \right)\)

A.\(y = {x^3} + 3x\)
B.\(y = \dfrac{{x - 1}}{{x - 2}}\)
C.\(y = \dfrac{{x + 1}}{{x + 3}}\)
D.\(y =  - {x^3} - 3x\)

A.\({M_4}\left( { - \dfrac{1}{2};\dfrac{3}{2}} \right)\)
B.\({M_1}\left( {\dfrac{1}{2};\dfrac{3}{2}} \right)\)
C.\({M_2}\left( {\dfrac{3}{2};\dfrac{1}{2}} \right)\)
D.\({M_3}\left( {\dfrac{3}{2}; - \dfrac{1}{2}} \right)\)

A.Việt Nam.
B.Triều Tiên.
C.Lào.
D.Campuchia.

A.\(5\)
B.\(6\)
C.\(3\)
D.\(4\)

A.\(\dfrac{{{{\left( {1 + \sqrt 2 } \right)}^{2020}} - 2021}}{{2020}}\) 
B.\(\dfrac{{{{\left( {1 + \sqrt 2 } \right)}^{2021}} + 2020}}{{2021}}\)
C.\(\dfrac{{{{\left( {1 + \sqrt 2 } \right)}^{2020}} + 2021}}{{2020}}\) 
D.\(\dfrac{{{{\left( {1 + \sqrt 2 } \right)}^{2021}} - 2020}}{{2021}}\)

A.\(9\)
B.\(8\)
C.\(7\)
D.\(6\)

A.\(\left( {\dfrac{4}{5};1} \right)\)
B.\(\left( {\dfrac{6}{5};2} \right)\)
C.\(\left( {0;\dfrac{1}{2}} \right)\)
D.\(\left( {\dfrac{3}{5};\dfrac{7}{{10}}} \right)\)

A.\(\dfrac{{3e + 1}}{2}\)
B.\(3e\)
C.\(2e\)
D.\( - e\)

A.Nạn đói.
B.Nạn dốt.
C.Tài chính.
D.Nạn đói và nạn dốt.