B. the development there has been at the highest pace
C. only a few species still live in the world
D. many species have been put on the endangered species list
27. The first European settlers killed predators chiefly in order to_______.
A. eat their meat B. protect themselves
C. please the Federal government D. protect their livestock
28. Some animal species are in danger of disappearing altogether from the earth as a result of_______.
A. peoples superstitious attitude
B. peoples dislike of some animals, such as bald eagle
C. peoples hunting games
D. the self-killing of the predators
29. Bounty hunters are people who_______.
A. take care of wilderness areas
B. preserve our wildlife
C. kill meat-eating animals for money
D. work in the fund of predator-control programs
30. According to the writer, even if the meat-eating animals sometimes caused losses of livestock, man should_______.
A. estimate the value of predators
B. compare the losses with the benefits of predators
C. keep the balance of nature
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