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Which of the following is NOT true about the deck crane?
A.
Deck cranes are able to pick up and land permitted loads anywhere within its working radius.
B.
Deck cranes have a strong adaptation for any kind of cargoes.
C.
Deck cranes have been replaced by derricks on many modern ships.
D.
Deck cranes are easy to operate because its rotary angle can reach 360 degrees.