为什么鸵鸟常常把头贴着地面

你问我答:
一颗鸵鸟蛋相当于多少颗鸡蛋
A.10颗
B.20颗
C.30颗

BGM:
David Newman - Opening Travel Music
Ari Pulkkinen - Funky Theme
John Powell - Dinner A La Sven
Sarah Class - Lions And Lizards Rock Cafe
Sarah Class - Shimmer Of The Flower Fields