试题与答案

下列有关哺乳类说法中不正确的是：（）。A、仅雌性哺乳动物具有 * * B、哺乳类的表皮特别

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题型：多项选择题

题目：

下列有关哺乳类说法中不正确的是：（）。

A、仅雌性哺乳动物具有 * *

B、哺乳类的表皮特别厚，是制革的好材料

C、肾门静脉消失

D、大多数胚胎的血管与母体直接相连，向母体索取养料

E、哺乳类外形最显著的特点是体外被毛

答案：

参考答案：A, B, D

考点：自然科学知识竞赛生物知识竞赛(普通动物学)生物知识竞赛(普通动物学)题库
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