The cost question has naturally become one of the key issues in the economics study as well as the major problem focused on by economists in real world.

因此，成本问题就理所当然的成为经济学研究的最重要的问题之一，现实世界中也一直是经济学家研究的主要问题。

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Question 3 conveys behavioral coping, also called "problem-focused."

问题3传达的是行为应对，也称“问题焦点”。

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Method the teaching method of problem-focused case discussion was used in the process of training before on duty, and the effectiveness was evaluated through examination of ability.

方法在岗前培训中采取案例问题式教学，通过能力题考试进行学习效果评价。

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Our greatest asset is our dedication to solving a fundamentally solvable problem using a multi-disciplinary and focused approach.

FORBES: A Manhattan Project To End The Obesity Epidemic

Perhaps the most formidable competitor is Compact GTL. This UK-based company is focused largely on addressing the problem of what to do with associated gas resulting from oil development that would otherwise be flared or reinjected.

FORBES: Gas-to-Liquids Plants: No Longer Exclusive to Larger Players

Your technical co-founder may spend long stretches of time focused on some particular technical detail or problem.

FORBES: What Sorts Of Things Can A Non-Technical Cofounder Do While The Product Is Being Developed?