【单项选择题】
QB/T2474-2000标准中方舌、钩舌的伸出长度应符合()
A、A.双舌、钩舌≥12.5mm,双舌(钢门)9mm,单舌12mm
B、B.双舌≥12.5mm,双舌9mm,单舌12mm
C、C.双舌≥11mm,双舌(钢门)9mm,单舌12mm
D、D.双舌≥12.5mm,双舌(钢门)9mm,单舌10mm
A、A.双舌、钩舌≥12.5mm,双舌(钢门)9mm,单舌12mm
B、B.双舌≥12.5mm,双舌9mm,单舌12mm
C、C.双舌≥11mm,双舌(钢门)9mm,单舌12mm
D、D.双舌≥12.5mm,双舌(钢门)9mm,单舌10mm