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【单选题】
A．1.522，0.427
B．1.522，0.472
C．0.592，0.427
D．0.592，0.529
A.
已知液化石油气在15℃时的液相各组分的摩尔成分(%)为
=47.39%，
=52.61%，则15℃时，液相平衡状态下的各组分的相平衡常数ki分别为（）。
=47.39%，=52.61%，则15℃时，液相平衡状态下的各组分的相平衡常数ki分别为（）。举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】炼焦用煤通常采用配煤工艺来扩大原料煤种，某焦化厂采用肥煤22%，焦煤26%，瘦煤 16%，气煤36%的比例配煤炼焦。配煤的各煤种挥发分含量(空气干燥基，重量%)依次为V1=28.5%，V2=23.8%，V3=12.6%，V4=40.6%，则配煤的挥发分按照可加性近似计算为( )。
A.
28.6%
B.
27.9%
C.
29.1%
D.
29.8%
【单选题】对于C50-8.83/0.118型抽气凝汽式机组，分产供热的锅炉效率和管道效率分别为0.75和0.96，联产供热的锅炉效率和管道效率分别为0.90和0.98，热网效率为0.97，热化供热量为442GJ/h，则集中供热的全年节约标煤量为（）t标煤/a。
A.
10 565
B.
11 229
C.
12 868
D.
13 096
【单选题】Man of Few Words Everyone chases success, but not all of us want to be famous. South African writer John Maxwell Coetzee is (1) for keeping himself to himself. When the 63-year-old was named the 20...
A.
A major theme in his work is South Africa’s former apartheid (种族隔离) system, which divided whites from blacks. (9) with the problems of violence, crime and racial division that still exist in the country, his books have enabled ordinary people to understand apartheid (10) within.
B.
"I have always been more interested in the past than the future," he said in a rare interview. "The past (11) its shadow over the present. I hope I have made one or two people think (12) about whether they want to forget the past completely. "
C.
In fact this purity in his writing seems to be (13) in his personal life. Coetzee is a vegetarian, a cyclist rather than a motorist and doesn’t drink alcohol.
D.
But what he has (14) to literature, culture and the people of South Africa is far greater than the things he has given up. "In looking at weakness and failure in life," the Nobel prize judging panel said, "Coetzee’s work (15) the divine (神圣的) spark in man. \