[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 下列成本中，属于船舶经营成本的有（　　）。
A.船员成本
B.折旧费
C.物料费
D.利息费

[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 该船舶年平均成本为（　　）元/吨。
A.150
B.200
C.260
D.300

[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 影响航运成本的因素有（　　）等。
A.燃油成本
B.船龄
C.船籍国
D.规模经济

[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 下列成本中，属于船舶经营成本的有（　　）。
A.船员成本
B.折旧费
C.物料费
D.利息费

[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 下列成本中，属于船舶航次成本的有（　　）。
A.燃油费
B.运河费
C.港口使费
D.物料费

[不定项选择题]某航线上一艘3000吨级船舶，每年营运20个航次，平均载货率为80%，平均运费收入为每吨200元，年固定成本为560万元，年可变成本为400万元。 下列关于边际成本与平均成本的说法，正确的有（　　）。
A.边际成本不随运输生产量的变化而变化
B.平均成本是指平均可变成本
C.边际成本是指每增加单位运量所增加的成本
D.平均成本包含平均固定成本和平均可变成本

[不定项选择题]A young woman in a small German town was going to give a piano concert. Her posters said that she was a pupil of Franz Liszt, the great Hungarian pianist. This was not true. One day the woman learned that Liszt himself was in town. Now people would find out and she would never be able to give a concert again. What should she do? Finally she went to see the famous man herself. She told him everything. Her parents were dead and she was alone. She had to make a living. She decided to give piano lessons to rich children. But who would send their children to an unknown young woman? So she told people Franz Liszt was her teacher. "I believe you," Liszt said. "You′ ve done wrong, but I can see you are truly sorry about it. That′ s enough. Now let me hear you play. " The young woman was shy at first. But then she saw Liszt smiling. It made her feel better. Now she wasn′ t afraid any more. She started playing. She put her heart into it and she played wonderfully. Liszt was quite pleased. When she finished, she turned to look at Liszt. There was a smile on his face. She could see he was pleased. Then Liszt gave her some advice. After he finished, "Now you really are my pupil. Go ahead with your concert. And you can add a note to the posters. Say that your teacher himself will be there. He will play the last piece. " According to the passage, we know Franz Liszt
A.was a proud and serious man
B.disliked the young woman
C.was angry with the young woman and criticized her seriously
D.was friendly to her and showed mercy to her hard life and helped her with the concert