问题
单项选择题 案例分析题
企业欲用控制图对某零件的生产过程进行监控，需要进行的工作主要有：
在均值图上应使用（）打点。
A.每个产品的测量值
B.子组均值
C.子组标准差
D.子组极差
答案
参考答案：B
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企业欲用控制图对某零件的生产过程进行监控，需要进行的工作主要有：
在均值图上应使用（）打点。
A.每个产品的测量值
B.子组均值
C.子组标准差
D.子组极差
参考答案：B
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| Jimmy 1 in the country (农村) and he loves 2 in the river near his house, but his father gets a job in a big city and he moves (搬到) there 3 his family. Their new house has a garden, but the garden is small. Jimmy 4 very happy. "Is there a river 5 ?" He is asking his mother 6 the first morning. His mother is answering, "No, there isn't, but there is a beautiful park near here and there is a pool in it. We 7 there this afternoon." Jimmy is happy now. After  lunch, Jimmy and his mother go to the park. Jimmy wants 8 near the pool, but there is a sign (标牌) in front of it. His mother reads it to him. "Warning (注意), this pool is dangerous (危险), 367 people have fallen into it (已掉入)." "Jimmy looks into the pool 9 and he says," But I can't 10 them." | |||
| ( )1. A. lives ( )2. A. plays ( )3. A. and ( )4. A. isn't ( )5. A. near here ( )6. A. on ( )7. A. is going ( )8. A. to walk ( )9. A. care ( )10. A. look | B. living B. playing B. or B. doesn't B. ne ar to here B. in B. are going B. walk B. careful B. see | C. live C. play C. with C. is C. here near C. at C. go C. walking C. carefully C. look for | D. to live D. playes D. to D. not D. here to near D. for D. goes D. walks D. cares D. look at |