HOW IS A RADIO-QUIPPED BUOY OPERATED

63. - DE THI THU DH DO LUONG
Tiếng Anh DE THI THU DH DO LUONG

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