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单选题
When they need overalls for their job, employees should inform the Supplies Department of _____.
A
the size
B
the color
C
the style
D
the quantity
参考答案
参考解析
解析：
细节题。文章最后一段倒数第二句提到“Inform Supplies of your size two days before you need them”，由此可知，当你需要工装时，你应该提前两天向供应部提供自己的尺码。A是正确答案。B、C、D项在文中没有提到。
细节题。文章最后一段倒数第二句提到“Inform Supplies of your size two days before you need them”，由此可知，当你需要工装时，你应该提前两天向供应部提供自己的尺码。A是正确答案。B、C、D项在文中没有提到。
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考题
单选题When they need overalls for their job, employees should inform the Supplies Department of ______ .A
The sizeB
the colorC
The styleD
the quantity
考题
单选题Which of the following tasks is not performed by the job coordinator?（）A
Update job log when a job completesB
Spawn and remove job slavesC
Write/read job info to/from memory cacheD
Query job tableE
Pass job information to job slaves
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单选题Examine the description of the EMPLOYEES table: EMP_ID NUMBER(4) NOT NULL LAST_NAME VARCHAR2(30) NOT NULL FIRST_NAME VARCHAR2(30) DEPT_ID NUMBER(2) JOB_CAT VARCHARD2(30) SALARY NUMBER(8,2) Which statement shows the maximum salary paid in each job category of each department?（）A
SELECT dept_id, job_cat, MAX(salary) FROM employees WHERE salary MAX (salary);B
SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id,job_cat;C
SELECT dept_id, job_cat, MAX(salary) FROM employees;D
SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept_id;E
SELECT dept_id, job_cat, MAX(salary) FROM employees GROUP BY dept _ id job _ cat salary;
考题
单选题Examine the data in the EMPLOYEES and EMP_HIST tables: EMPLOYEES NAME DEPT_ID MGR_ID JOB_ID SALARY EMPLOYEE_ID 101 Smith 20 120 SA_REP 4000 102 Martin 10 105 CLERK 2500 103 Chris 20 120 IT_ADMIN 4200 104 John 30 108 HR_CLERK 2500 105 Diana 30 108 IT_ADMIN 5000 106 Smith 40 110 AD_ASST 3000 108 Jennifer 30 110 HR_DIR 6500 110 Bob 40 EX_DIR 8000 120 Ravi 20 110 SA_DIR 6500 EMP HIST EMPLOYEE_ID NAME JOB_ID SALARY 101 Smith SA_CLERK 2000 103 Chris IT_CLERK 2200 104 John HR_CLERK 2000 106 Smith AD_ASST 3000 108 Jennifer HR_MGR 4500 The EMP_HIST table is updated at the end of every year. The employee ID, name, job ID, and salary of each existing employee are modified with the latest data. New employee details are added to the table. Which statement accomplishes this task?（）A
UPDATE emp_hist SET employee_id, name, job_id, salary = (SELECT employee_id, name, job_id, salary FROM employees) WHERE employee_id IN (SELECT employee_id FROM employees);B
MERGE INTO emp_hist eh USING employees e ON (eh.employee_id = e.employee_id) WHEN MATCHED THEN UPDATE SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT VALUES (e.employee id, e.name, job id, e.salary);C
MERGE INTO emp_hist eh USING employees e ON (eh.employee_id = e.employee_id) WHEN MATCHED THEN UPDATE emp hist SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT INTO emp_hist VALUES (e.employees_id, e.name, e.job_id, e.salary);D
MERGE INTO emp_hist eh USING employees e WHEN MATCHED THEN UPDATE emp_hist SET eh.name = e.name, eh.job_id = e.job_id, eh.salary = e.salary WHEN NOT MATCHED THEN INSERT INTO emp_hist VALUES (e.employees_id, e.name, e.job_id, e.salary);
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