單項(xiàng)選擇題
A.10mmB.15mmC.20mmD.30mm
A.46.7B.46.6C.46.5D.46.4
A.-5%~+10%B.-5%~+5%C.-10%~+10%D.-10%~+5%
A.25N/mmB.25.8N/mmC.26N/mmD.26.0N/mm
判斷題