A.150~260B.180~240C.160~240D.180~260
A.≥0.02MPa 和≥0.2MPaB.≥0.05MPa 和≥0.5MPaC.≥0.04MPa 和≥0.5MPaD.≥0.04MPa 和≥0.4MPa
A.≥12hB.≥24hC.≥24dD.≥12d