真实遗传(true breeding)
A.The largest female in the social group does not maintain reproductive status by means of behavioral control.
B.An individual’s ability to breed is related primarily to its rate of growth.
C.Breeding is the only task performed by the breeding female.
D.Breeding in the social group is not cooperative.
E.Breeding is not dominated by a single pair of dogs.
A.It has a strong life force.
B.It can threaten some freshwater species.
C.Some people make a living by breeding it.
D.It has been found in a pond of Maryland.
Which of the following is NOT true according to the passage?
A.It is recommended that fish venders should buy clown fish from breeders directly.
B.To breed anemone fish in fish farms is to keep their number in nature undisturbed.
C.Anemone fish bred at a farm can survive better in new environment.
D.The technology of breeding anemone fish will sit in the hands of scientists only.
By no means it is true that all English people know their own language.
A. By no means
B.it is
C.all English people
D.own
Which of the following is NOT true? ______.
A.Dark blue brings tragedy.
B.Dark blue means tradition.
C.Dark blue represents night.
D.Dark blue indicates quietness.
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