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.

A.People are prohibited from approaching animals in safari parks.
B.People are advised not to approach animals in safari parks.
C.Safari parks don't prohibit people from approaching animals.
D.Safari parks allow people to approach animals.

A.When humans stop poaching, many rare animals will become extinct.
B.If people don't stop poaching, a lot of rare animals will become extinct.
C.As soon as people stop poaching, a lot of rare animals will become extinct.
D.Provided that people stop poaching, many animals will become extinct.

A.Homes are built for Komodo dragons on five islands of Indonesia.
B.Komodo dragons are the only living creatures on Indonesia's islands.
C.Komodo dragons live on five islands of Indonesia.
D.Komodo dragons prefer to live in hot countries like Indonesia.

A.\(\left( {x;y;p} \right) = \left( {1;1;2} \right)\)
B.\(\left( {x;y;p} \right) = \left( {1;2;3} \right)\)
C.\(\left( {x;y;p} \right) = \left( {1;1;3} \right)\)
D.\(\left( {x;y;p} \right) = \left( {1;1;5} \right)\)