A.打折優(yōu)惠 B.折扣票價(jià) C.市場(chǎng)調(diào)節(jié) D.價(jià)格調(diào)整
A.1:1.2~1:1.3 B.1:1.2~1:1.25 C.1:1.1~1:1.5 D.1:1.1~1:1.2