题干

下列哪项不能在动物间起到通讯联系的作用(   )

A:蜜蜂的圆形舞

B:植物花瓣散发的芳香

C:母鸡召唤小鸡的鸣声

D:蝶类释放性外激素

上一题 下一题 0.0难度 选择题 更新时间:2012-11-27 06:54:39

答案(点此获取答案解析)

B

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-----What happened here yesterday?                          
-----An adventurer was walking at the foot of the mountain ______ suddenly a stone fell and hit him on the head.