连锁经营大致分为三种形式：直营连锁式、特许经营连锁式和自由连锁式。
Chain operation is roughly divided into three types: direct chain operation, franchise chain operation, and free chain operation.
“连锁与互换定律”是摩尔根在遗传学领域的一大贡献，它和孟德尔的分离定律、自由组合定律一道，被称为遗传学三大定律。
Chain and Exchange LawMorgan is in the field of genetics of a large contribution, and the separation of Mendelian law a free combination law, known as the Three Laws of genetics.
“连锁与互换定律”是摩尔根在遗传学领域的一大贡献，它和孟德尔的分离定律、自由组合定律一道，被称为遗传学三大定律。
Chain and Exchange LawMorgan is in the field of genetics of a large contribution, and the separation of Mendelian law a free combination law, known as the Three Laws of genetics.
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