【简答题】听小对话,选图画,回答问题。 1. What are they talking about? [ ] A. B. C. 2. How will they spend their weekend? [ ] A. B. C. 3. Where is the speaker now? [ ] A. B. C. 4. Which is Betty's pet? [ ] A....
【简答题】Explain how fatigue failure occurs even if the material does not see overall stress levels higher than the yield strength. What is the difference between failure of a material by creep and that by str...
【单选题】— How shall we spend the weekend? — If you _____a day trip to the coast, the pleasant seaside town of Brighton is only 20 miles away. — That's wonderful! Let's go there. [ ]