题目内容
高周疲劳是应力小于____，应力循环周数大于____的疲劳破坏。
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低周疲劳是在应力约等于____应力，应力循环周数小于（ ）的疲劳破坏。
静力疲劳应力集中系数Kt=____。
Text APart I (Paras. 1- 3__)The president congratulates students on their achievement and reminds students of the fact that their current success was due to _________________________________, and that their future is built on __________________________________.
para 6Here at the university, it may not always be _________ to have so many new experiences all at once. In your dorm, the student next door may ______________ play the one song, which gives you a giant headache! You may be an early bird while your roommate is ______________! And still, you and your roommate may become best friends. Don’t worry if you become a little uncomfortable with some of your new experiences.
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