函数极限 ( ) . A B C D.0http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/97c6725c599b40869e0fc4cacbebfbff.png
举一反三
- 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" />
- 下列函数中，在复平面上为解析函数的是( ). A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/3f0b6fb48fce4383ad5b3ab4b8f9b85c.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/636eb9bb3ce04a3fbc7427723f28c6ba.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/47f094504d954232985bd754c9e7e936.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/3a85c12341aa48aaa2990250bcbe235b.png">
- n个变量的逻辑函数一共有最小项（ ）个。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/bc6b2e9c189248feb007810275b3ba46.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/a04259d5f82c487eb3fe219bdfe142fd.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/994cb971d6b0496e97023da8982c9ee1.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/c7dc4e3adc954375b97a1f5f805272cc.png" />
- 图中尺寸标注正确的是（） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/c27b2c5bcd5248d2938ff20dcadb3848.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/283d8966e68e476a835df10a7001fa1b.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/99cfc288fcb64fd282a9ad41acac2e70.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/c8163178d3cb46f98f20b4c79e872b18.png" />
- 下列尺寸标注正确的是（） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/c9b1f998550f46f2954ddb9a6e931917.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/2ebdcfcbd422486e8f52decd4b1f3c91.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/713b97186b2a4602a111ab988359072b.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201809/d21403f12f034db3b26192a552f8f9c1.png" />