An artist who was recently traveling on a ferry to the southern island discovered（ ）a long lost antique Greek vase.
A.at random B.by chance C.in turn D.on occasion正确答案B
An artist who was recently traveling on a ferry to the southern island discovered（ ）a long lost antique Greek vase.
A.at random B.by chance C.in turn D.on occasion正确答案B
