单项选择题
A.121℃±3B.115℃±5C.121℃±5D.115℃±3
A.GB4789.15B.GB4789.2C.GB4789.3D.GB4789.28
A.121℃,30minB.121℃,15minC.116℃,15minD.116℃,30min
A.1个月B.3个月C.6个月D.12个月
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