【简答题】随时间作周期替变化的应力称为交变应力。循环特征 r= σ min / σ max = – 1 的应力循环称为 ( ) 循环。 [ s -1 0 ] (构件持久极限)是构件在对称循环交变应力下的许用应力, [ s ] 静应力下的许用应力,往往 [ s -1 0 ] ( ) [ s ] (选填>、<)。< /div>
【单选题】If you meet a new word and you are not sure what it means, _______ it _______ in a dictionary.
【简答题】(b) Explain what effect the acquisition of Di Rollo Co will have on the planning of your audit of the consolidated financial statements of Murray Co for the year ending 31 March 2008. (10 marks)
【判断题】电池对温度很敏感,温度越高电池容量损失越大。