Total fixed costs are those costs that change when the volume of production changes.
A.
正确
B.
错误
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举一反三
【简答题】For this part you are allowed 30 minutes to write a composition entitled Punctuality in at least 120 words. Your composition should be based on the outline given below: 1. 你对守时的看法 2. 人们不守时的借口以及你对此的评论 ...