在机械图上标注的尺寸数值是机件实际大小按绘图比例换算得到的数值。
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绘制机械图样时,绘图比例没有优选系列,制图者可根据需要自行确定。
A. 对
B. 错
一个稳定的LTI系统的响应可分解为瞬态响应与稳态响应两部分,其稳态响应的模式完全取决于
A. 系统的特性
B. 系统的激励
C. 系统的状态
D. 以上三者的综合
卷积的方法只适用于线性时不变系统的分析。
A. 对
B. 错
Engineer 1: Hey, you prefer (1) X® over Windows®, don't you?Engineer 2: Not at all. Windows® is my favorite (2) system.Engineer 1: Really? I'm surprised.Engineer 2: What's surprising about it? Windows® has great (3) compatibility.Engineer 1: Perhaps, but OS X® is less likely to get (4).Engineer 2: I see where you're coming from. But I prefer a large software library.Engineer 1: But don't you agree that OS X® is better all around?Engineer 2: Nope. I guess we have to (5) to disagree.