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    【题目】对于下列物理量，按要求填空（填字母）

    A．密度

    B．米/秒

    C．牛顿

    D．加速度

    E．质量

    F．秒

    G．米

    H．长度

    I．时间

    J．千克

    （1）属于物理量的是________________________。

    （2）在国际单位制中，作为基本单位的物理量是____________。

    （3）属于国际单位制中的基本单位的是__________，属于导出单位的是____________。

    【答案】（1）A、D、E、H、I （2）E、H、I （3）G、F、J B、C

    【解析】（1）属于物理量的是密度、加速度、质量、长度、时间。故该空应填“A、D、E、H、I”。

    （2）在国际单位制中，作为基本单位的物理量有质量、长度和时间，故填“E、H、I”。

    （3）属于国际单位制中的基本单位是m、kg、s；属于导出单位的有m/s、N。故本小题第一空填“G、F、J”，第二空应填“B、C”。

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