下图是华纳兄弟（Warner Bros）娱乐公司的老标志（左）和新标志（右），从变化中可以看出（ ）。https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/8734a2f5a38948a1a8ff4064206c894d.png
举一反三
- 从肯德基的标志反白稿处理方法可已看出（ ）。https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/f62a7b95335e4938a240608ccc8cfebd.png
- 从标志的主题类别来看，图中这组标志是（ ）？https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/6b624f375c92415eb368321746b39074.png
- 超静定结构如图所示。AB为刚性杆，Δl1和Δl2分别表示1杆和2杆的伸长量。（1）画出结构的变形图；（2）结构的变形协调方程为（）。<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/1d244f931b4f498387e6b53de221a1a0.png" /> A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/4b064cc8699743d8959964f269679df5.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/016f63e17bcf4b0994832a46bdcd4cf6.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/67848f0944be4264890a220ae646822f.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/31a9888b0b0a431c96d0253ea32b18a6.png" />
- 下列系统中线性时不变系统是（）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/4b45f35cbb8b49eea328e0f1af3a3101.png" >（<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/3f1f37fe4ba54c4fb69d1be115a88f2d.png" >为常数） B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/481b4d4b98e24b94a2eaa9ec011e0186.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/f0f925fadec648b4b7c35161be6f3a3d.png" >（<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c10b602726304747bf5fe38a760da1ae.png" >为常数） D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/62c5dee47e9045cca90a53856dc04845.png" >
- 理想低通滤波器的传输函数<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/980b5b2a8d7044b697bc516003ea3acb.png" >是()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/9a82e2e4ff27470da538512097ee6438.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c079877bd52d471db3cd6e163f62adbb.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/52aa9898f12641d797c40e4d118bd733.png" > D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/a7815d7407f34172aeef470a6adc5f47.png" >