【单选题】用以综合衡量金属锻造性能的因素是金属的:
【简答题】A.Fixed B.Changed C.Flexible D.Various
【简答题】A.Fixed B.Changed C.Flexible D.Various
【简答题】The Department is also deeply _____ in various improvement schemes. A. connected B. included C. involved D. implied
【单选题】用以综合衡量金属锻造性能的因素是金属的:
【简答题】(b) Explanations of the various matters. (11 marks)
【简答题】A.versatile B.various. C.variant D.variable
【简答题】求函数f 1 (t)=(1+t)[u(t)-u(t-1)]和f 2 (t)=u(t-1)-u(t-2)的卷积f 1 (t)*f 2 (t)。