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在p-υ图及T-s图(如图所示)上标出空气的n=1.2的吸热过程1-2和n=1.6的膨胀过程1-3的区间，并确定过程1-2和1-3中功和热量的正负号。

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A.It is sad that you can find comfort with friends only in Facebook.B.It is conve

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在p-υ图及T-s图(如图所示)上标出空气的n=1.2的吸热过程1-2和n=1.6的膨胀过程1-3的区间，并确定过程1-2和1-3中功和热量的正负号。

根据《药品经营质量管理规范实施条例》 退货药品库

系统熵增加的过程必为不可逆过程。( )

对气体加热其温度一定升高。

A.It is sad that you can find comfort with friends only in Facebook.B.It is conve

根据《药品经营质量管理规范实施条例》退货药品库