- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
氣氨總管的壓力指標(biāo)是（）Mpa
A.≤0.1
B.≤0.2
C.≤0.3
D.≤0.4
A.≤0.1
B.≤0.2
C.≤0.3
D.≤0.4
