• 2022-07-23
    选择棱锥被正垂面截切后正确的左视图。
    A:
    B:
    C:
    D:
  • C

    举一反三

    内容

    • 0

      在绘制程序流程图时,下面哪个表示“选择结构”【 】 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f690d214ae1a4af7b5efcdb4b898f2ac.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/d5525f58c3264ce69be6c8a899f5e49c.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f058e79b5ce846e1a57975ef8d0a9ac8.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6aa136bdf7f8499fa1bccb119e6db668.png">

    • 1

      对于任意n阶方阵A,B,下列是对称方阵的都是 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/1a43a777df9b4731b424fb37e661e405.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/2a440183f9f2423c88b1100af99446f0.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/43b6ddb36a7d47e2903b409b8f9d58ef.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/06fa8f644c2544998e11eb1c376b7433.png" />

    • 2

      在绘制程序流程图时,表示“输入输出框”的符号是【 】 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f8903e583d58447c95256614aeba2b23.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/085165f724e2411fa13d32a63e72667f.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/2496fc2bccf1452a919f2ab41a7abe3b.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/e54f827918da4e828650b0540ff0c15f.png">

    • 3

      下面选项中,哪个选项可表示演员的纵向调度方式( ) A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f0eaadc8df5d4796bbb6a586c10ea834.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/7ff2be64dcc64378888394497e8983b9.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/4a5eaec9de7c4b009b76fc21739a9f9b.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/3a9370278d044da08486296d86974eb7.png" />

    • 4

      下列由苯合成对溴苯乙烯的路线中不合理的为( ) A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/0818eee932074387a18092e30ed28712.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/50cb97b0db934b649252b6a738ab1b79.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/b59aafd0ad2c4a97bdebb8cbc6bab177.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f9c8a58bde5042c88d5281d19c6bc018.png" />