问题
问答题 简答题
编织胶管与夹布胶管相比有何优点。
答案
参考答案：
由于编织胶管的编织层通常按平衡角交织而成它与夹布胶管相比具有承压性能好，承压下其扭转，膨胀及收缩的变形小，反抗冲击性能好，弯曲性能好。
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编织胶管与夹布胶管相比有何优点。
参考答案：
由于编织胶管的编织层通常按平衡角交织而成它与夹布胶管相比具有承压性能好，承压下其扭转，膨胀及收缩的变形小，反抗冲击性能好，弯曲性能好。
| 选择适当的单词填空完成短文。 | |||
| Mary comes 1___________ Australia. She is twelve. She is in China 2___________ her family now. She is a student. She 3___________ her school and her classmates. She speaks Chinese, but she 4___________ speak Chinese very well. Mary gets up very early 5___________ the morning. She has milk and bread 6___________ breakfast. Then she goes to school by bike. In the evening she does her homework and reads books. She 7___________ to bed 8___________ 9: 00. She is very 9___________ every day.
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