A.7.5cm B.10d C.10d或7.5cm(取小值) D.10d或7.5cm(取大值)
A.4.5mm B.4.8mm C.5.0mm D.5.3mm
A.2.7~3.0mm B.2.7~3.5mm C.3.0~3.5mm D.3.5~4.0mm