A:Thank you very much
B:Yes, I’d love to.
C:No, I don’t think so
D:You’re welcome
随着服装市场竞争日益激烈,某品牌服装专卖店一款服装按原售价降价20%,现售价为a元,则原售价为( )
作者强调鲁迅先生的背影是灰黑色的?