The farmer pays 20 cents for the seed that is sold to the miller for 35 cents; the miller makes flour and sells it to the baker for 55 cents. The baker makes bread and sells it to the grocery store for 80 cents, and the store sells it to consumers for $1.00. The contribution to GDP is农民为种子支付20美分，然后以35美分的价格卖给磨坊主。磨坊主制作面粉，以55美分卖给面包师。面包师制作的面包以80美分的价格卖给杂货店，然后商店以1美元的价格卖给消费者。对于GDP的贡献为 A、 $2.90 2.9美元 B、 $ 1.90 1.9美元 C、 $1.00 1美元 D、 20 cents 20美分
理解问题The farmer pays 20 cents for the seed that is sold to the miller for 35 cents; the miller makes flour and sells it to the baker for 55 cents. The baker makes bread and sells it to the grocery store for 80 cents, and the store sells it to consumers for $1.00. The contribution to GDP is农民为种子支付20美分，然后以35美分的价格卖给磨坊主。磨坊主制作面粉，以55美分卖给面包师。面包师制作的面包以80美分的价格卖给杂货店，然后商店以1美元的价格卖给消费者。对于GDP的贡献为 A、 $2.90 2.9美元 B、 $ 1.90 1.9美元 C、 $1.00 1美元 D、 20 cents 20美分
已完成理解「The farmer pays 20 cents for the seed that is sold to the miller for 35 cents; the miller makes flour and sells it to the baker for 55 cents. The baker makes bread and sells it to the grocery store for 80 cents, and the store sells it to consumers for $1.00. The contribution to GDP is农民为种子支付20美分，然后以35美分的价格卖给磨坊主。磨坊主制作面粉，以55美分卖给面包师。面包师制作的面包以80美分的价格卖给杂货店，然后商店以1美元的价格卖给消费者。对于GDP的贡献为 A、 $2.90 2.9美元 B、 $ 1.90 1.9美元 C、 $1.00 1美元 D、 20 cents 20美分」
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