对批量为2000的某产品，采用AQL=0.65%，检验水平为Ⅱ的一次正常检验方案，最近从第21批开始连续16批检出的不合格品数分别为：1，3，2，1，2，3，1，1，2，1，1，1，1，1，1，3。
连续16批产品中，有( )批不合格。
A．2
B．3
C．4
D．5
参考答案：C
解析： 掌握检验转移规则，批量N=2000，检验水平为Ⅱ，AQL=0.65%，查的一次正常检验方案为(125，2，3)，故在第22批和第26批中发现2批不合格，按照“五二”规则(连续5批或不到5批中就有2批不接收，则应从下批开始加严检验)，故从第27批开始转为加严经验；再次查表的加严检验的抽样方案为(125，1，2)，发现第29批不合格，但从第30批一直到34批都合格，由“连五”规则(进行加严检验时，如果连续5批初次检验就收，则从下一批恢复正常检验)，因此从第35批起开始恢复正常检验；转为正常检验后发现第36批又判为不合格。所以共有4批不合格。故答案为C。
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| Mr. Hutman owns a restaurant. One day, one of his two cooks ran away with some money. Mr. Hutman was sad and worried because the next day was Saturday, and the restaurant 1 very busy then. So that night he called his friends, but could not find anyone to help. On Saturday, many people came to the restaurant for lunch. 2 cook got so busy that he wanted to leave, too. 3 , one of the waiters, Henry, told Mr. Hutman that he could help in the kitchen. People who had lunch in the restaurant that day enjoyed the food Henry cooked. Mr. Hutman was very happy and made Henry a new cook of the restaurant. | ||||
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