What is the passage mainly about?A.Reproduction in echinoderms.B.How fish avoid their enem
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What is the passage mainly about?
A.Reproduction in echinoderms.
B.How fish avoid their enemies.
C.The form. of starfish.
D.The feeding habits and digestive systems of starfish.
请帮忙给出正确答案和分析,谢谢!
