单项选择题
A.125% B.100% C.75% D.50%
A.14倍 B.10倍 C.7倍 D.5倍
A.30% B.25% C.20% D.15%
A.1.1~1.35倍 B.1.35~1.5倍 C.1.5~2.0倍 D.2~2.5倍
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