單項選擇題每一驗收批中應(yīng)任意抽取10%和擠壓接頭作外觀質(zhì)量檢查,如外觀質(zhì)量不合格數(shù)少于抽栓數(shù)的(),則該批擠壓接外觀質(zhì)量評為合格。

A.8%
B.10%
C.12%
D.15%