车轮轮缘磨损量超过原厚度的50%时，或轮缘弯曲变形达原厚度的30%时，车轮应报废。
题型：判断题
问题：
车轮轮缘磨损量超过原厚度的50%时，或轮缘弯曲变形达原厚度的30%时，车轮应报废。
题型：判断题
根据对话内容写出单词，注意单词的正确形式(共5个空格，每个空格1分，满分5分)
小题1:A : Do you think outdoor ___________ are good for our health. ?
B: Yes, I often go hiking and cycling at weekends .
小题2:A: Giant pandas are in ________ now .
B: Yes ,we must help them survive in the wild .
小题3:A: Many animals lose their ________ because people buy furs.
B: I don’t think that’s right .
小题4: A: Did you go to the cine
ma last Sunday ?
B: No, I stayed at home and packed my bag ________ .
小题5: A: What’s Millie like ?
B: She is very ________ and often shares her food with us .