The purpose of the experiment at the University of Vienna was to().
A.正确答案Cshow dogs’ response to rewards
B.test dogs’ sense of cooperation
C.demonstrate dogs’ emotion of envy
D.measure dogs’ refusal of commands
The purpose of the experiment at the University of Vienna was to().
The purpose of the experiment at the University of Vienna was to().
A.正确答案Cshow dogs’ response to rewards
B.test dogs’ sense of cooperation
C.demonstrate dogs’ emotion of envy
D.measure dogs’ refusal of commands