多项选择题
A.0.8 B.1.2 C.0.5 D.0.45
A.25-35% B.10-15% C.15-30%
A.1.2 B.1.0 C.1.5 D.2-2.5
A.1-4 B.4-5 C.5-6 D.2-6
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