单项选择题
A.2~10 B.2~24 C.12~24 D.6~12
A.燕麦 B.筱麦 C.荞麦 D.青稞
A.0.01 B.0.02 C.0.03 D.0.04
A.1%~1.5% B.1.5%~3% C.3%~4.5% D.4.5%~5%
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