You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine isA.higher than the bus equencyB.lower than the bus equencyC.the same as the bus frequ

题目
You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine is

A.higher than the bus equency

B.lower than the bus equency

C.the same as the bus frequency but out of phase with it

D.same as the bus frequency and the circuit breaker may be closed at

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参考答案和解析
答案：B
更多“You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine is ”相关问题

  • 第1题：

    His novel depicts an ambitious Chinese.

    A:writes
    B: sketches
    C: describes
    D:indicates

    答案：C
    解析：
    句意为：他的小说描写的是一个雄心勃勃的中国人。句中depicts意为“描述，描画”,writes意为“写，书写”;sketches意为“画素描或速写”;degeribeg意为“描述，形容，描绘”;indicates意为“表明，指出，预示，象征”。故选C。

  • 第2题：

    Her novel depicts an ambitious Chinese.

    A: writes
    B: sketches
    C: describes
    D: indicates

    答案：C
    解析：
    句意：她的小说描绘了一个志向远大的中国人。depict意为“描绘，描画”。 write 意为“写”。sketch意为“速写，为……绘草图”。describe意为“描写，描述”。indicate意为“显示”。

  • 第3题：

    ZigBee通信接收数据时一般会收到的消息是？

    A．af_incoming_msg_cmd

    B．af_incoming_receive

    C．af_incoming_send

    D．af_incoming_task


    802.15.4

  • 第4题：

    I doubt they'll be able to help but it's worth trying.

    A:growing
    B:wrapping
    C:hiding
    D:attempting

    答案：D
    解析：
    本句意思：我不敢肯定他们能帮得上忙，但不妨试一试。try试，尝试。grow成长，生长； wrap包，裹（礼物等）; hide藏，隐藏；attempt企图，试图，尝试。

  • 第5题：

    执行完下面的语句后，欲删除整个数组，最适当的方法是（） float *pointer=new float[10];

    A．delete * pointer;

    B．delete[ ] pointer;

    C．delete pointer [ ];

    D．delete & pointer;


    ALTER 表名 DROP COLUMN 列名

  • 第6题：

    MySQL 5.7中基于组提交的并行复制如何设置

    A．slave-parallel-type 设置为DATABASE

    B．slave-parallel-type 设置为LOGICAL_CLOCK

    C．master-parallel-type 设置为DATABASE

    D．master-parallel-type 设置为LOGICAL_CLOCK


    对

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