问答题
Why does Chapron come to the conclusion that poaching causes the mysterious death of wolves?
A.Because DNA evidence suggests human involvement in the killing of wolves.
B.Because Chapron and his colleagues have tracked down the murdering site.
C.Because extensive researches have shown the evidence of poaching.
D.Because only poaching could not just kill the wolf but destroy the GPS collar.
A.Because
B.
B.Because
C.
C.Because
D.
D.Because
E.