All those second-hand goods are sold at beforeA. 30％ as lower price asB. 30％ as low a pr

All those second-hand goods are sold at before．
A. 30％ as lower price as
B. 30％ as low a price as
C. as 30％ low price as
D. 30％ lower price than

A. 30％ as lower price as(答案→)B. 30％ as low a price asC. as 30％ low price asD. 30％ lower price than解析：考查倍数的表达：倍数+as +adj+as结构，这里30%就相当于倍数，句意：这些二手商品比之前的要便宜百分之三十。这30％ as low a price as 是固定搭配，不能调换词的顺序的。

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