单项选择题
A.<0.5% B.0.5%~1% C.1%~2% D.3%~5% E.>5%
A.10天内 B.10~14天 C.14~28天 D.1~2个月 E.以上都不是
A.3~5mg/(kg·D.,持续6~8周 B.3~5mg/(kg·D.,持续3~5周 C.10mg/(kg·D.,持续4~6周 D.10mg/(kg·D.,持续3~5周 E.20mg/(kg·D.,持续10周