对于狄利克雷函数： 其中 为自然数，下列结论哪个不正确（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a3642f3327b0490db56e9392f13eed1c.png
举一反三
- 对于狄利克雷函数： 其中就j,k为自然数，下列结论哪个正确 （ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201711/406ea31312fa429d9a7dede336b3bcec.png
- 针对狄利克雷函数 则 （ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201711/209cb5012591423791b60825afcbffd8.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" />
- 体心立方结构金属晶体的的密排面为（ ）， 密排面晶面间距为（ ）。 A: （110） B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/b9f806bad3874ceca9c758a3b0107652.png"> C: （111） D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/80eebcaaf36e4af084acf1e4d07e1acf.png"> E: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/dc64bdb4cb04403097873133316c57a8.png"> F: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/1b1c162777d04e51bd02eb8f92094b84.png">
- 已知轴的主视图，根据标注选择所对应的正确的断面图，其中正确的B-B是（ ）。<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/fb36fa86ece84fbcbc0f2230abb855ad.png" /> A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/0310f38d6cfc4fdd8b4d527907f732a3.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/dba503dc28c741698b1cf083200d24ad.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/1b977d55d6a84bceb9e6c39b7f9d878c.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/82093ffe849a4e789e46eaf4c768a318.png" />