片形吸虫在终末宿主体内发育成熟需经(?)个月。A．1一2B．2一4C．3一4D．5E．6

作者: rantiku 人气: - 评论: 0

问题片形吸虫在终末宿主体内发育成熟需经(?)个月。

选项 A．1一2 B．2一4 C．3一4 D．5 E．6

答案 B

解析

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