题目内容
某纺织厂的一个车间有技术工人
名(
),编号分别为1、2、3、……、
,有
台(
)织布机,编号分别为1、2、3、……、
,定义记号
:若第
名工人操作了第
号织布机,规定
, 否则
,则等式
的实际意义是( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222129955337.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222129971554.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222129955337.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130002297.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130018531.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130002297.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130065389.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130080251.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130096276.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130111433.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130143472.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130158775.png)
A.第4名工人操作了3台织布机; | B.第4名工人操作了![]() |
C.第3名工人操作了4台织布机; | D.第3名工人操作了![]() |
A
解:由题意,
说明第4名工作人员操作了n台机器中的三个
即第4名工人操作了3台织布机
故选A
![](http://thumb.1010pic.com/pic2/upload/papers/20140823/20140823222130158775.png)
即第4名工人操作了3台织布机
故选A
![](http://thumb2018.1010pic.com/images/loading.gif)
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