- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
WJ-7型扣件系統(tǒng)中W1型彈條的直徑為（）
A.13mm
B.14mm
C.16mm
D.12mm
A.13mm
B.14mm
C.16mm
D.12mm
