Wal-Mart's online experience is the ______ that success in the brick and mortar world doesn't create corresponding success in e-merce.
A.evidence B.proof C.help D.fact正确答案B
Wal-Mart's online experience is the ______ that success in the brick and mortar world doesn't create corresponding success in e-merce.
A.evidence B.proof C.help D.fact正确答案B