HOW IS A RADIO-QUIPPED BUOY OPERATED

63. - DE THI THU DH THAN KHAO CO DAP AN
Tiếng Anh DE THI THU DH THAN KHAO CO DAP AN
63. How is a radio-quipped buoy operated?A. by operators outside the vehicle in a laboratory on shore B. by operators outside the vehicle on a diving platform C. By operators outside the vehicle on ship D. by operators inside the vehicle in the part underwater