单项选择题
A.菊花 B.一品红 C.凤仙花 D.大丽花
A.0.002% B.0.2% C.0.1% D.0.005%
A.0.5%；24h B.0.4%；24h C.4%；24h D.4%；48h
A.0.1%~0.6% B.0.1%~0.3% C.10%~20% D.0.1%~0.2%
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