Allthosesecond-handgoodsaresoldat

問題詳情：

 All those second-hand goods are sold at______ before.

A. 30% as lower price as                       B. as 30% low price than

C. 30% as low a price as                       D. 30% as low price as

【回答】

C

知識點：詞組 短語

題型：選擇題