in price 还是on price

Question

in price 还是on price
怎么还有说 用介词at 的？
http://zhidao.baidu.com/question/38002466.html?si=9

麻烦回答详细点，详细者给分
请问还有 on price 说法？
能回答详细点么？

Answer 1

in price <价格> 还是 on price <物价>

come down in price 价格下跌
fall in price; go down in price 跌价
moderate to high in price 价格由平稳看涨

hold the line on prices 保持价格不变
a control on prices 物价管制

Answer 2

in price.就价格而言。在价格方面。
Computers have come down much in price.电脑降价很厉害。
at some price 以。。。的价格
I sold my computer at a low price.我便宜卖了我的电脑。

on price 很少见。