皮皮学，免费搜题
登录
搜题
【简答题】
醋酸甲酯 a. 和甲醇 b. 混合物系的数(用 ln 表示)为 A 12 =1.029,A 21 =0.946, 在 54 °C 时,纯组分的饱和蒸气压数据分别为 P 10 =677mmHg,P 20 =495mmHg 试判断: a. 在 54 °C 无恒沸物? b. 形成什么样的恒沸物? 由方程计算无限稀释溶液的活度系数
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Dogs have a very good ______ of smell and are often used to search for survivors in the earthquake.
A.
sense
B.
view
C.
meaning
D.
idea
【单选题】Dogs have a very good _____ of smell and are often used to search for survivors in an earthquake. [ ]
A.
view
B.
feeling
C.
sense
D.
idea
【单选题】Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
A.
sense
B.
view
C.
means
D.
idea