单项选择题
A.40%B.30%C.25%D.20%
A.80~100℃B.100~120℃C.120~130℃D.130~150℃
A.50-100gB.100-150gC.150-200gD.200-250g
A.5~10%B.10~15%C.15~20%D.20~25%
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