比较两个一位二进制数A和B,当A=B时输出F=1,则F的表达式是（ ）。
A: F=A⊙B
B: F=AB
C:
D:
A: F=A⊙B
B: F=AB
C:
D:
举一反三
- 以下属于二向应力状态的是（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/e15f6476f10340b08e04f43932434268.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/e15f6476f10340b08e04f43932434268.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/e15f6476f10340b08e04f43932434268.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/e15f6476f10340b08e04f43932434268.png" />
- 下列函数表达中，（ ）是周期信号（ ） A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/fa28c4df306a4768855eadcf32f77987.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/7a1a43bddcbc4b438f49428cef75ea64.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/5b67d7d31dd34862904bc3d9086668ed.jpg" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/377afdab17404edf84b525cd9e974df1.png" />
- 具有顺反异构体的物质是 ( ) 。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/9bf08e194cf24f80b9582238a48b2d98.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/6a33a313aebe4d5a8d8f6cd250361fec.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/f7a33598bdb74c3180f03e2517cac29c.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/d86d498d7c6b4594ad58fdbaad86028c.png" />
- 下列最稳定的自由基是（ ）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/7ff51d95af804e74bbffb2091d336668.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/a7bc08ef90914e13a5f795670eb1e67b.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/6f85cd60c27645c39d58990b87615ebf.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/f5d0c506ba09424a838f7aee98e94e43.png" />
- 属于钙通道阻滞剂的药物是（ ）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/3112081992ed47f8bf358bd9942d5ebb.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/17c349ff9e8e450c971ceb98947611f8.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/4194526443744627b8a6fc1be47523d1.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202012/28cffdd18be74b33bc7d9efac912d8c3.png" />