HOW DIFFERENT A PICTURE WE NOW HAVE OF THE OCEAN AS THE SEA HAS BEGUN TO REVEAL ITS SECRETS

3/ - SACH BT ANH 10 CO DAP AN
SACH BT ANH 10 CO DAP AN

3/ How different a picture we now have of the ocean as the sea has begun to reveal its secrets.

A. public B. opening C. knowledge D. schooling