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简答题用高速档行驶与采用低速档行驶相比哪种情况节油？为什么？

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简答题 CRM软件系统通常由哪几个部分组成？

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简答题呼叫中心的基本结构是什么？

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案例分析题上海市某区人民法院受理了一起化妆品损伤皮肤案，原告诉称：因使用了某A化妆品厂的产品造成面部皮肤严重损伤，要求被告赔偿经济损失。被告辩称：原告使用的化妆品确为本厂生产的产品，但该产品是厂内正在研制过程的实验品，并未投入市场。经法庭调查，原告使用的化妆品是身为A化妆品厂检验员的男友所送，法庭委托有关产品检验机构对化妆品进行检测，结果表明：A厂生产的化妆品以现代科学技术水平尚不能发现缺陷的存在，进一步对原告进行皮肤测试，结论是原告皮肤属于特殊的过敏性皮肤，对该化妆品具有特殊的过敏性，从而导致皮肤损伤。在什么情形下生产者可不承担赔偿责任？

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Examine the structure of the EMPLOYEES table:EMPLOYEE_ID NUMBER NOT NULLEMP_NAME VARCHAR2(30)JOB_ID VARCHAR2(20) DEFAULT 'SA_REP'SAL NUMBERCOMM_PCT NUMBERMGR_ID NUMBERDEPARTMENT_ID NUMBERYou need to update the records of employees 103 and 115. The UPDATE statement you specify should update the rows with the values specified below:JOB_ID: Default value specified for this column definition.SAL: Maximum salary earned for the job ID SA_REP.COMM_PCT: Default value specified for this commission percentage column, if any.If no default value is specified for the column, the value should be NULL.DEPARTMENT_ID: Supplied by the user during run time through substitution variable.Which UPDATE statement meets the requirements?（）

A. UPDATE employees SET job_id = DEFAULT AND Sal = (SELECT MAX(sal) FROM employees WHERE job_id = 'SA_REP') AND comm_pct = DEFAULT AND department_id = &did WHERE employee_id IN (103,115);
B. UPDATE employees SET job_id = DEFAULT AND Sal = MAX(sal) AND comm_pct = DEFAULT OR NULL AND department_id = &did WHERE employee_id IN (103,115) AND job_id = 'SA_REP';
C. UPDATE employeesC.UPDATE employees SET job_id = DEFAULT, Sal = (SELECT MAX(sal) FROM employees WHERE job_id = 'SA_REP'), comm_pct = DEFAULT, department_id = &did WHERE employee_id IN (103,115);
D. UPDATE employeesD.UPDATE employees SET job_id = DEFAULT, Sal = MAX(sal), comm_pct = DEFAULT, department_id = &did WHERE employee_id IN (103,115) AND job_id = 'SA_REP';
E. UPDATE employees SET job_id = DEFAULT, Sal = (SELECT MAX(sal) FROM employees WHERE job_id = 'SA_REP'), comm_pct = DEFAULT OR NULL, department_id = &did WHERE employee_id IN (103,115);

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简答题 用高速档行驶与采用低速档行驶相比哪种情况节油？为什么？

简答题 CRM软件系统通常由哪几个部分组成？

简答题 呼叫中心的基本结构是什么？

简答题用高速档行驶与采用低速档行驶相比哪种情况节油？为什么？

简答题呼叫中心的基本结构是什么？