【判断题】【消耗次数:1】
对触发脉冲的要求有一定的宽度,且达到一定的功率
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相关题目
【单选题】 对触发脉冲的要求有()。
①  一定的宽度,且达到一定的电流
②  一定的宽度,且达到一定的功率
③  一定的功率,且达到一定的电流
④  一定的功率,且达到一定的电压
【判断题】 PTO为高速脉冲串输出,它可输出一定脉冲个数和一定周期的占空比为50%的方波脉冲。
①  正确
②  错误
【多选题】 以下逻辑器件内部一定包含触发器的有( )。
①  优先编码器 74148
②  十进制计数器 74160
③  双向移位寄存器 74194
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②  错误
【单选题】 苯达到一定剂量,可导致( )
【单选题】 老人对产品有一定的了解后就开始让老人自己体验。
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②  B.技术要求
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④  D.国家法律
【判断题】 电功率大的用电器,电功也一定大。
①  正确
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①  Enjoy yourselves
②  You name the day
③  You cant miss it
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①  Why bother?
②  Oh, come on!
③  Then what?
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①  Well, how have you been?
②  How do you do?
③  Nice to meet you.
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③  Its pleasure to meet you, Lin Xiaoyan.
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