UNTIL ABOUT A CENTURY AGO, THE DEEP-OCEAN FLOOR WAS COMPLETELY I...

Question

Câu 25: Until about a  century ago,  the  deep-ocean  floor  was completely inaccessible,  hidden  beneath  waters averaging over 3,600 meters deep.A. unreachable B. unusable C. unrecognizable D. unsafe

Accepted Answer

1 A A D D B B C B B B B D B B B A C C A B B C B D 2 B A C D A A D A A D B D B B D C C B A D C D A D 3 A A C C B C B C D D A C A A D C C C C D A A D A 4 C C A C B B A C D D C A B B B B B B D D B B B B....

UNTIL ABOUT A CENTURY AGO, THE DEEP-OCEAN FLOOR WAS COMPLETELY I...

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