47. Why does the author mention “chromatophores?”
(A)To explain how cephalopods change their color.
(B)To explain how cephalopods change their texture.
(C)To demonstrate how muscles affect the nervous system.
(D)To showcase the evolutionary progress of octopuses.
答案:登入後查看
統計: A(47), B(13), C(5), D(3), E(0) #3262773
統計: A(47), B(13), C(5), D(3), E(0) #3262773