最简单的两个问题，答对马上给50，绝不食言。
The simplest two questions, answer immediately to 50, not renege.
本文对用最简单的方法推导基本公式和“设正法”用于材料力学中两个重要问题提出商榷。
Two important problems i. e. using the simplest method to DE - rive basic formula and using the plus assumption method in the strength of materials were discussed in this paper.
我有两个最喜爱的问题，它们最简单也最有力地帮助我应对挑战：“这样有什么好处？”
Two of my favorites are at once the simplest and most powerful in helping me overcome challenges :"What's great about this?"
我有两个最喜爱的问题，它们最简单也最有力地帮助我应对挑战：“这样有什么好处？”
Two of my favorites are at once the simplest and most powerful in helping me overcome challenges :"What's great about this?"
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