【判断题】热力过程,热力系统体积膨胀,表示对外做正功,反之为外界对其做功
【简答题】(__)称为I型裂纹的应力强度因子,衡量裂纹顶端应力场的强烈程度的函数。
【单选题】设 ,讨论以下极限 , , ,若极限存在,求出极限值
【判断题】产品装箱清单应随压力容器一起装箱,供委托单位开箱时核对。
【单选题】I think it was a bit boring to work here because there wasn’t always much to do.
【简答题】punctual/old/receptionist/wasn't/always/The