单项选择题
A.100ug/d B.150ug/d C.200ug/d D.250ug/d
A.10mg/d B.15mg/d C.20mg/d D.25mg/d
A.100kcal B.120kcal C.150kcal D.200kca
A.5%-10% B.10%-15% C.8%-10% D.15%-20%
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