题目内容
固定成本加可变成本等于总成本（）
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"Would you please just stop the car and ask someone where we are?" If your wife or girlfriend has ever had_________to say this to you.
you'd better stop your car ans seek_________ from people bearby. Here's how to go about it.
1. Admit that you're lost. The first step in getting help is recognizing that you have a________.
1. Ask someone lnowledgeable.________ anyone who has to think more than a seconds after you ask is trying to be "helpful"________ that'll get you even more______ than before
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