单选：赫令体是（）。A．弓状核细胞分泌颗粒聚集的团块B．视上核和室旁核细胞的分泌颗粒聚集的团块C．垂体细胞的分泌物聚集形成的团块D．神经纤维聚集形

题目分类：生物学
题目类型：单选
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题目内容：

赫令体是（）。
A．弓状核细胞分泌颗粒聚集的团块
B．视上核和室旁核细胞的分泌颗粒聚集的团块
C．垂体细胞的分泌物聚集形成的团块
D．神经纤维聚集形成的团块

参考答案：

西晋灭亡后,黄河流域成为进入中原的北方各族争夺统治权的战场,参与这一斗争的主要民族有史称“五胡”的匈奴和（）。

西晋灭亡后,黄河流域成为进入中原的北方各族争夺统治权的战场,参与这一斗争的主要民族有史称“五胡”的匈奴和（）。

分类：生物学题型：单选

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