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【单选题】
按《液化气体汽车罐车安全监察规程》的规定，汽车罐车罐体的设计压力不得低于介质在运输过程中可能出现的最高工作压力，对于不带保温层或绝热层的罐体，其设计温度取50℃，设计压力原则上应取介质在5℃0的饱和和蒸汽压力的（）。A.
1.0倍
B.
1.1倍
C.
1.25倍
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