单选题 There are many different kinds of peaches (桃). One clear difference is the one between clingstone--fruit in which the flesh is stuck to the seed inside--and freestone --that in which the seed floats freely. Customers prefer freestone peaches because they don't want to struggle to get the flesh away from the seed.
And that's how it goes in stone fruit land. Plant breeders (培育者) are trying all the time to improve the old favorites. Frequently, the changes are designed to meet the demands of the growers or packers. One very delicious family of peach varieties has nearly disappeared because it forms a small" beak" at the bottom of the fruit. That little point is likely to break during packing and shipping, opening the door to spoilage (腐烂).
This is certainly not to say that the wants of customers are not important. In fact, they drive some of the most important changes. One thing customers like is red--lots of red. Peaches used to be prized for golden skin ; now people are buying red, regarding it as a sign of ripeness.
But red has a hold on people. There's a story told by those in the stone fruit industry about a marketing experiment. A group of people were given two peaches : one a fairly tasteless red variety, the other a great-tasting gold. Sitting around, tasting and talking about the fruit, the group all agreed that the gold was a much better peach and that was the one they would buy. Then, on the way out the door, they were offered boxes of peaches as a thank-you gift. One held the preferred golden fruit, the other the red. To a person, they picked the red fruit to take home. Red sells.