12. 某種物質具有如下所示的相圖。請問在下列哪一組溫度(T)與壓力(P)條件下, 該物質為純液體?
(A) T = 8.0°C, P = 1.0 atm
(B) T = 10.0°C, P = 0.5 atm
(C) T = 70.0°C, P = 1.2 atm
(D) T = 80.0°C, P = 1.0 atm
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統計: A(0), B(0), C(3), D(0), E(0) #3494587
統計: A(0), B(0), C(3), D(0), E(0) #3494587