奶牛:牛奶A.蚌:珍珠 B.鸟:鸟巢 C.螃蟹:蜜蜂 D.猪:猪肉

作者: tihaiku 人气: - 评论: 0
问题 奶牛:牛奶
选项 A.蚌:珍珠 B.鸟:鸟巢 C.螃蟹:蜜蜂 D.猪:猪肉
答案 A
解析 牛奶是从雌性奶牛身上挤出来的,珍珠是由蚌的分泌物形成的,两者都具有经济价值。答案为A。

相关内容:奶牛,牛奶,珍珠,鸟巢,螃蟹,蜜蜂,猪肉

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