某定量均流体从 298 K 、 10 p 恒温压缩时,总物系的焓增加,则该物系从 298 K 、 10 p 节流膨胀到邻近某一状态时,物系的温度必将:
A.
升高
B.
降低
C.
不变
D.
不确定
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