UNDERSEA VEHICLES _______. A. MAKE DIRECT OBSERVATIONS OF THE OCE...

19. - DE THI THU DH THAN KHAO CO DAP AN
Tiếng Anh DE THI THU DH THAN KHAO CO DAP AN
19. Undersea vehicles _______. A. make direct observations of the ocean floor B. are too small for a man to fit insideC. have the same limitations that divers have D. are very slow to respond