• 2022-06-15 问题

    下列各组量子数哪些是不合理的,为什么? ① n=2,li=1,mi=0 ② n=3,li=2,mi=-1 ③ n=3,li=0,mi=0 ④ n=3,li=1,mi=+1 ⑤ n=2,li=0,mi=-1 ⑥ n=2,li=3,mi=+2

    下列各组量子数哪些是不合理的,为什么? ① n=2,li=1,mi=0 ② n=3,li=2,mi=-1 ③ n=3,li=0,mi=0 ④ n=3,li=1,mi=+1 ⑤ n=2,li=0,mi=-1 ⑥ n=2,li=3,mi=+2

  • 2022-06-15 问题

    写出下列各组中缺少的量子数: ① n=?,li=2,mi=0,si= +1/2 ② n=2,li=?,mi=-1,si= -1/2 ③ n=4,li=2,mi=0,si= ? ④ n=3,li=1,mi=?,si= -1/2

    写出下列各组中缺少的量子数: ① n=?,li=2,mi=0,si= +1/2 ② n=2,li=?,mi=-1,si= -1/2 ③ n=4,li=2,mi=0,si= ? ④ n=3,li=1,mi=?,si= -1/2

  • 2022-06-07 问题

    “申请”表的结构如下:使用INSERT命令插入一条记录,正确的是() A: INSERTTNTO申请(项目负责人,申请日期,项目状态)(”2012110001”ctod(“05/05/2014”),2) B: INSERTTNTO申请(项目负责人,申请日期)VALUES(”2012110001”,ctod(“05/05/2014”),2) C: INSERTTNTO申请(项目负责人,申请日期,项目状态)VALUES(”2012110001”,ctod(“05/05/2014”)) D: INSERTTNTO申请(项目负责人,申请日期,项目状态)VALUES(”2012110001”,ctod(“05/05/2014”),2)

    “申请”表的结构如下:使用INSERT命令插入一条记录,正确的是() A: INSERTTNTO申请(项目负责人,申请日期,项目状态)(”2012110001”ctod(“05/05/2014”),2) B: INSERTTNTO申请(项目负责人,申请日期)VALUES(”2012110001”,ctod(“05/05/2014”),2) C: INSERTTNTO申请(项目负责人,申请日期,项目状态)VALUES(”2012110001”,ctod(“05/05/2014”)) D: INSERTTNTO申请(项目负责人,申请日期,项目状态)VALUES(”2012110001”,ctod(“05/05/2014”),2)

  • 2022-06-16 问题

    ​浏览器不支持音频​(6-10)Việt Nam có mấy miền khí hậu chủ yếu? () A: 2 miền B: 3 miền C: 4 miền D: 5 miền

    ​浏览器不支持音频​(6-10)Việt Nam có mấy miền khí hậu chủ yếu? () A: 2 miền B: 3 miền C: 4 miền D: 5 miền

  • 2022-06-08 问题

    用ls-al命令列出下面的文件列表,哪个文件是符号链接文件?() A: -rw------- 2 hel-s users 56 Sep 09 11:05 hello B: crw------- 2 hel-s users 56 Sep 09 11:05 goodbye C: drwx----- 2 hel-s users 56 Sep 09 11:05 zhang D: lrw------- 2 hel-s users 56 Sep 09 11:05 cheng

    用ls-al命令列出下面的文件列表,哪个文件是符号链接文件?() A: -rw------- 2 hel-s users 56 Sep 09 11:05 hello B: crw------- 2 hel-s users 56 Sep 09 11:05 goodbye C: drwx----- 2 hel-s users 56 Sep 09 11:05 zhang D: lrw------- 2 hel-s users 56 Sep 09 11:05 cheng

  • 2022-06-03 问题

    Naturally we are all ______ to know the result of the test. (anxious(ly); eager(ly))

    Naturally we are all ______ to know the result of the test. (anxious(ly); eager(ly))

  • 2022-06-03 问题

    Young people are usually ______ to try out new things. (anxious(ly); eager(ly))

    Young people are usually ______ to try out new things. (anxious(ly); eager(ly))

  • 2022-06-01 问题

    c_ _ly

    c_ _ly

  • 2022-06-03 问题

    They are getting very ______ because the world market is getting more and more competitive. (anxious(ly); eager(ly))

    They are getting very ______ because the world market is getting more and more competitive. (anxious(ly); eager(ly))

  • 2022-06-03 问题

    I waited ______ outside the emergency room during my mother's operation. (anxious(ly); eager(ly))

    I waited ______ outside the emergency room during my mother's operation. (anxious(ly); eager(ly))

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