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【判断题】
边际贡献总额等于销售单价减去单位变动成本。 ( )A.
正确
B.
错误
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【简答题】Watch the video ( greeting in different cultures.mp4 ), note down the different ways of greeting in different cultures and answer the following questions. 1. How do British people greet each other acc...
【单选题】Watch the video clip. Choose the best answers to the following questions. 1. How do you use the knives and forks? ( )
A.
a. From left to right.
B.
b. From right to left.
C.
c. From the outside in.
D.
d. From the inside out.
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