• 2022-07-01 问题

    如果函数列[img=17x23]180355dee962dbd.png[/img]在区间I上连续,[img=17x23]180355dee962dbd.png[/img]的极限函数[img=9x23]180355defa7ebfd.png[/img]连续,那么[img=17x23]180355dee962dbd.png[/img]一定一致收敛到[img=9x23]180355defa7ebfd.png[/img]

    如果函数列[img=17x23]180355dee962dbd.png[/img]在区间I上连续,[img=17x23]180355dee962dbd.png[/img]的极限函数[img=9x23]180355defa7ebfd.png[/img]连续,那么[img=17x23]180355dee962dbd.png[/img]一定一致收敛到[img=9x23]180355defa7ebfd.png[/img]

  • 2021-04-14 问题

    Who is “Dee”?

    Who is “Dee”?

  • 2022-07-29 问题

    The<br/>climax of “Everyday Use” occurs when ____. A: the<br/>mother takes the quilts from Dee and gives them to Maggie B: Dee's<br/>boyfriend arrives C: Dee<br/>makes dinner for her boyfriend D: Dee sets fire to the house

    The<br/>climax of “Everyday Use” occurs when ____. A: the<br/>mother takes the quilts from Dee and gives them to Maggie B: Dee's<br/>boyfriend arrives C: Dee<br/>makes dinner for her boyfriend D: Dee sets fire to the house

  • 2022-06-14 问题

    dBd

    dBd

  • 2022-06-14 问题

    dBi与dBd的关系下面哪个是正确的?() A: dBd=2.15+dBi B: dBd=2.15-dBi C: dBi=2.15+dBd D: dBi=2.15-dBd

    dBi与dBd的关系下面哪个是正确的?() A: dBd=2.15+dBi B: dBd=2.15-dBi C: dBi=2.15+dBd D: dBi=2.15-dBd

  • 2022-06-14 问题

    中国大学MOOC: 天线的增益可用dBi和dBd表示,17dBi= dBd。

    中国大学MOOC: 天线的增益可用dBi和dBd表示,17dBi= dBd。

  • 2022-07-29 问题

    The climax of the short story Everyday Use is ______. A: Dee taking pictures of the house B: the argument over the quilts C: the dinner D: Dee's leaving

    The climax of the short story Everyday Use is ______. A: Dee taking pictures of the house B: the argument over the quilts C: the dinner D: Dee's leaving

  • 2022-06-14 问题

    表征天线增益的参数用dBd或dBidBi是相对于在各方向的辐射是均匀的理想点源天线的增益;dBd相对于对称阵子天线的增益dBd和dBi的关系式可以表示为() A: dBi=dBd+2.15 B: dBd=dBi+2.15 C: dBi=dBd+3.15 D: dBd=dBi+3.15

    表征天线增益的参数用dBd或dBidBi是相对于在各方向的辐射是均匀的理想点源天线的增益;dBd相对于对称阵子天线的增益dBd和dBi的关系式可以表示为() A: dBi=dBd+2.15 B: dBd=dBi+2.15 C: dBi=dBd+3.15 D: dBd=dBi+3.15

  • 2022-10-29 问题

    增益是天线的重要指标,单位通常有dBi和dBd,两者之间的关系为:() A: dBi=dBd+2.15dB; B: dBi=dBd+2.5dB; C: dBd=dBi+2.15dB; D: dBd=dBi+2.5dB。

    增益是天线的重要指标,单位通常有dBi和dBd,两者之间的关系为:() A: dBi=dBd+2.15dB; B: dBi=dBd+2.5dB; C: dBd=dBi+2.15dB; D: dBd=dBi+2.5dB。

  • 2022-06-14 问题

    DBD报文的主要内容?

    DBD报文的主要内容?

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