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A.A differs among animal species
B.B to psychological distance
C.C begin toattack
D.D to physiological distance
E.E distance between an animal and its enemy before fleeing
F.F distance between certain animal species before fleeing
答案
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第4题
A ferret is probably a kind of_______．
A.tame animal
B.fierce anitaal
C.lovely animal
D.tamable animal
第5题
Each animal owns ______.
A．sound
B．home
C．language
第6题
A.Tourist and animal feeder.
B.Consultant and animal expert.
C.Interviewer and interviewee.
D.Pet owner and animal doctor.
第7题
Squeeze out the poisonous blood in case the animal bite mangle the skin.
A．Y
B．N
C．NG
第8题
To study animal emotions, scientists should
A．set up improved and refined skillful experiments.
B．analyze human emotional.
C．distinguish what is emotional and what is conditioned.
D．learn from animal behaviorists.
第9题
Useful drugs are made from inorganic substances or are plant and animal by-products.
A．materials
B．derivatives
C．chemicals
D．ingredients
第10题
The Eskimos always live in a tent made of animal skins surrounded by blocks of ice.
A．Y
B．N
C．NG
