Not having received an answer, I decided to send them a cable.() 2022-10-25 No receiving an answer, I decided to send them a cable.() 2022-10-25 Having not received an answer, I decided to send them a cable.() 2022-10-25 Haven’t received an answer, I decided to send them a cable.() 2022-10-25 （)an answer, I decided to send them a cable. 2022-10-25 脆性材料具有（）力学性质。 2022-09-08 脆性材料具有若构件因开孔造成应力集中现象，对强度有明显影响。（） 2022-09-08 脆性材料具有抗冲击性能比塑性材料好。（） 2022-09-08 脆性材料具有压缩强度极限比拉伸强度极限小得多。（） 2022-09-08 脆性材料具有试件拉伸过程中出现屈服现象。（） 2022-09-08