A.the bite of any bat was fatal
B.the cattle had been injured seriously
C.the cattle had been infected with rabies
D.the bats could pass an unknown disease
A.It was a failure in the experiment
B.It completely destroyed vampire bats
C.It eliminated the virus of rabies altogether
D.It successfully protected the cattle from being infected with rabies
A.is still a mystery
B.can be controlled
C.has been eliminated
D.is impossible to deal with
A.rabies which is harmful to people
B.the vaccine which could control rabies
C.vampire bats which spread rabies
D.different efforts people made to kill empire bats