单项选择题
A.0.6% B.1.6% C.0.2% D.0.1% E.1%
A.98.4% B.99.4% C.99.8% D.99.9% E.99%
A.10kg B.15kg C.20kg D.25kg E.30kg
A.22.4~68.3kg B.12.4~58.3kg C.33.4~68.3kg D.44.4~68.3kg E.10~23kSg
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