試題詳解

46. What is the main idea of this passage?
(A) There are physically differences between cuttlefish, squid, and octopuses.
(B) Cuttlefish communicate with others of its species in some intriguing ways.
(C) Several distinctive features contribute to the survival of cuttlefish.
(D) Cuttlefish’s eight arms have been developed mainly for the purpose of intimidating prey.