逻辑函数F(A,B,C)=AB+BC+AC的卡诺图为（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/7a8254757f8a4fc6ab82fa93a8e86ebf.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/229cbcade3654fb99c66a7c102ec046f.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/1c851f1288be499c92d2a7b40607bd1a.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/3b385269839a45df9645db71096c2e81.png" />

肌梭的传入冲动增加时，产生的生理效应是（ ）。 A: 抑制支配同一肌肉的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/9ac56a95b41140bda4b92a06b142fcac.png" />运动神经元 B: 兴奋支配其他关节肌肉的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/326ccbcecf0b4f38ad797c17e9c8f328.png" />运动神经元 C: 抑制支配同一肌肉的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/6072dea4f924446ba57f2784c01aa7e6.png" />运动神经元 D: 兴奋支配同一肌肉的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/31ef0f2b379b4020ae79a7f05d738d54.png" />运动神经元

要使处于基态的氢原子受激发后能发射赖曼系（由激发态跃迁到基态发射的各谱线组成的谱线系）的最长波长的谱线，至少应向基态氢原子提供的能量是（ ）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/e1e9ef1d2bf84de38859596b6e8e02dd.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/2cef31d6c1d54357aefc254f66268c82.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/55f8bae20cda4d94a7b98995a25337ac.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201806/f19c34afcda3415a977d4975adf3723f.png" />

设<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bed4f91f4fec44358e1cad3163fc6b90.png" />是在区间<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a58a11f71a434f2ab38a2f347802f010.png" />上的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a392447e03794318affaa2b03bb5967b.png" />的分段线性插值函数，以下条件不是<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/c00fe77a8291453a8cb2577eb68735ad.png" />必须满足的条件是________________. A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/cf6e811a4488413fae8f1839e4d098ea.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bb93b2d7d02245878ec51e2986c97b5d.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/ec6692c00c2e49b6adbf9b0493638b81.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/214f277da4154f58a43751f80b09d959.png" />

<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/2205d9f03e724a04b34f2f1045309079.png" />的幅频响应是，幅频响应是。 A: 1，<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/760d7fcc2f264ed1b10fb836cb48f565.png" /> B: -1，<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/21f685d2962e4b6993bfcaa513bdbf68.png" /> C: 2，<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/57267e995f86426899ce3cc0177a2343.png" /> D: 1，<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201903/ea8ba62853a94a15a5620c5165e3594a.png" />