单项选择题
A.1%-2% B.1.5%-3% C.1%-3% D.2%-4%
A.80%-90% B.50%-60% C.60%-70% D.40%-50%
A.5% B.8% C.10% D.15%
A.24.6-102.5 B.34.8-124.5 C.41.8-125.4 D.34.8-135.4
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