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Japanese quality control has improved dramatically in the last 30 years for all of the following reasons except:A . the use of quality circles.B . small, continuous improvements in quality control.C . the use of worker suggestion systems.D . the use of qu
题目
Japanese quality control has improved dramatically in the last 30 years for all of the following reasons except:
A . the use of quality circles.
B . small, continuous improvements in quality control.
C . the use of worker suggestion systems.
D . the use of quality control charts.
E . focusing quality control efforts on production outputs.
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第1题：
18 Using the situation stated in the Special window, a comparison of the cost variance of August as compared to July shows that the magnitude ($ value) of the variance has _____ and the percentage change has _____.
A. Become worse, become worse
B. Become worse, improved
C. Improved, increased
D. Improved, become worse
E. None of the above are correct
正确答案：B
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第2题：
已知last指向单向简单链表的尾结点，将s所指结点加在表尾，不正确的操作是____。
A．last-＞next=s,last=s,last-＞next=NULL;
B．last-＞next=s,s-＞next=NULL,last=s;
C．s-＞next=NULL, last-＞next=s, s=last;
D．s-＞next=NULL, last-＞next=s,last=s;
s-＞next=NULL, last-＞next=s, s=last; -
第3题：
已知last指向单向简单链表的尾结点，将s所指结点插入在表尾，正确的操作是____。
A．s-＞next=s,last=s,last-＞next=NULL;
B．last-＞next=s,s-＞next=NULL,last=s;
C．s-＞next=NULL, last-＞next=s, s=last;
D．s-＞next=last, last-＞next=NULL,last=s;
B -
第4题：
Examine the structure of the EMPLOYEES table:Column name Data type RemarksEMPLOYEE_ID NUMBER NOT NULL, Primary KeyLAST_NAME VARCNAR2(30)FIRST_NAME VARCNAR2(30)JOB_ID NUMBERSAL NUMBERMGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBERYou need to create an index called NAME_IDX on the first name and last name fields of the EMPLOYEES table. Which SQL statement would you use to perform this task? （）
A. CREATE INDEX NAME _IDX (first_name, last_name);
B. CREATE INDEX NAME _IDX (first_name, AND last_name)
C. CREATE INDEX NAME_IDX ON (First_name, last_name);
D. CREATE INDEX NAME_IDX ON employees (First_name, AND last_name);
E. CREATE INDEX NAME_IDX ON employees (First_name, last_name);
F. CREATE INDEX NAME_IDX FOR employees (First_name, last_name);
参考答案：E
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第5题：
7、已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。
A．s-＞next=s,last=s,last-＞next=NULL;
B．last-＞next=s,s-＞next=NULL,last=s;
C．s-＞next=NULL, last-＞next=s, s=last;
D．s-＞next=last, last-＞next=NULL,last=s;
s-＞next=NULL, last-＞next=s, s=last; -
第6题：
已知last指向单向简单链表的尾结点，将s所指结点加在表尾，正确的操作是____。
A．s-＞next=s,last=s,last-＞next=NULL;
B．last-＞next=s,s-＞next=NULL,last=s;
C．s-＞next=NULL, last-＞next=s, s=last;
D．s-＞next=last, last-＞next=NULL,last=s;
B