Copper losses are _____ losses in the primary and secondary windings of the transformer core.A、inductiveB、capacitiveC、resistiveD、reactive

题目
Copper losses are _____ losses in the primary and secondary windings of the transformer core.

A、inductive

B、capacitive

C、resistive

D、reactive


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  • 第1题:

    域名服务器的种类不包括()

    A.主域名服务器(Primary)

    B.次域名服务器(Secondary)

    C.只缓存域名服务器(Caching-only)

    D.测试域名服务器(Test)


    答案:d

  • 第2题:

    目前的U-NET版本不支持设置穿透损耗,为了摸拟室内用户行为,一般采取什么方法来解决?()

    A . 目前无法解决;

    B . 提高边缘覆盖概率,进而提高阴影衰落余量;

    C . 设置手机终端损耗Losses;

    D . 降低终端发射功率


    参考答案: C

  • 第3题:

    Provision of medical care is classified into primary, secondary, and ______ care categories.

    A.third
    B.three
    C.tertiary
    D.the third

    答案:C
    解析:
    A选项意为“第三”;B选项意为“三”;C选项意为“第三的,第三级的”;D选项意为“第三的”。题目意为“提供医疗保健分为初级、次级和_____护理类别。”因此选C,第三级护理。
      

  • 第4题:

    publicclassScoreimplementsComparable{privateintwins,losses;publicScore(intw,int1){wins=w;losses=1;}publicintgetWins(){returnwins;}publicintgetLosses(){returnlosses;}publicStringtoString(){return<+wins+,+losses+>”;}//insertcodehere}Whichmethodwillcompletethisclass?()

    A.publicintcompareTo(Objecto){/*modecodehere*/}

    B.publicintcompareTo(Scoreother){/*morecodehere*/}

    C.publicintcompare(Scores1,Scores2){/*morecodehere*/}

    D.publicintcompare(Objecto1,Objecto2){/*morecodehere*/}


    参考答案:B

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    在摩托罗拉拥塞分析中,MOTOROLA的半速率信道掉话次数统计指标是RF_LOSSES_tch_hr_roll

    A.错误

    B.正确


    参考答案:B

  • 第6题:

    8、使用神经网络实现鸢尾花分类任务,若标签值和预测值都采用独热编码形式表示时,通常调用______模型性能评估函数。

    A.tf.keras.metrics.binary_accuracy(threshold=0.5)

    B.tf.keras.losses.CategoricalAccuracy()

    C.tf.keras.metrics.categorical_accuracy()

    D.tf.keras.metrics.SparseCategoricalAccuracy()


    tf.keras.metrics.categorical_accuracy()