【判断题】确定加工路线时的工作重点是确定粗加工及空行程的加工路线。( )
【简答题】What are the two ductility indexes?
【判断题】Ductility and malleability are not always coextensive – for instance, while gold has high ductility and malleability, lead has low ductility but high malleability.
【简答题】Among the following properties, temperatures have the greatest effect on ______. A) ductility B) impactstrength C) hardness D) strength
【简答题】调用fgets函数,从fp所指向的文件读入8个字符,存入指针变量p所指向的内存缓冲区的语句为______________;(答案不要包括末尾的分号;不要添加不必要的空格)
【单选题】Which is the ductility?
A.
stress at where strain deviates from being proportional to stress
C.
deformation at necking
D.
deformation at fracture
【判断题】轮作是在同一块土地上,按照一定年限轮换种植仅两种不同性质的蔬菜。