选择题：一个生产大队有猪、牛、羊 各若干头。牛的头数的10倍减去羊的头数再减4．结果再乘以10，正好比猪、牛、羊的总数多4。如果猪、牛、羊的头数均是质数，这个生产...

题目内容：

一个生产大队有猪、牛、羊 各若干头。牛的头数的10倍减去羊的头数再减4．结果再乘以10，正好比猪、牛、羊的总数多4。如果猪、牛、羊的头数均是质数，这个生产队有猪、牛、羊 共多少头?

A.20 B.26 C.32 D.38

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