质控样品测定结果的偏差一般应小于
A.10%
B.15%
C.20%
D.25%
E.30%
参考答案:C
Tony, a good basketball player, has the of being the tallest boy in the class.
A.division
B.competence
C.distinction
D.status
滑胎肾气不足证的治疗用()
A.肾气丸
B.补肾固冲汤
C.二者均是
D.二者均不是