Examine the structure if the EMPLOYEES table: Column name Data Type Remarks EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID VARCHAR2(20) NOT NULL SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You need to create a view called EMP_VU that allows the user to insert rows through the view. Which SQL statement, when used to create the EMP_VU view, allows the user to insert rows? （） [" CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, department_id FROM employees WHERE mgr_id IN (102, 120);"," CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, job_id department_id FROM employees WHERE mgr_id IN (102, 120);"," CREATE VIEW emp_Vu AS SELECT department_id, SUM(sal) TOTALSAL FROM employees WHERE mgr_id IN (102, 120) GROUP BY department_ id;"," CREATE VIEW emp_Vu AS SELECT employee_id, emp_name, job_id, DISTINCT department_id FROM employee"]
对于外购无形资产重置成本的评估方法有（）。 ["财务核算法","市价调整法","市价类比法","物价指数法"]
脂肪的分解的开始产物？
资本金利润率
An eX5 client is concerned about the cost-per-GB of the proposed SAS disk-based solution, and suggests using SATA disk technology in order to reduce costs for their 24x7 mission-critical Microsoft SQL Server application. Which of the following addresses the customer issues?（） ["SAS drives support automatic rebuild upon failure, SATA must be rebuilt manually ","SAS drives support Fibre Channel attachment to eX5 servers, SATA does not ","SATA drives require different, more expensive cables, and require more floor space compared with SAS ","SATA storage is slower, has lower mean time between failure, and designed for a lower duty cycle compared with SAS"]
功率因数cosφ低的不良后果，一是发电设备不能被（），二是增加输电线路上电压损失和功率损耗。
