变压器采用从副边向原边折合算法的原则是（）。 保持副边电流I2不变。 保持副边电压为额定电压。 保持副边绕组漏阻抗不变。 保持副边磁通势不变。
Examine the structure of the EMPLOYEES and DEPARTMENTS tables: EMPLOYEESColumn name Data type Remarks EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2 (30) JOB_ID VARCHAR2 (20) SALARY NUMBER MGR_ID NUMBER References EMPLOYEE_ID COLUMN DEPARTMENT ID NUMBER Foreign key to DEPARTMENT ID column of the DEPARTMENTS table DEPARTMENTSColumn name Data type Remarks DEPARTMENT_ID NUMBER NOT NULL, Primary Key DEPARTMENT_NAME VARCHAR2(30) MGR_ID NUMBER References MGR_ID column of the EMPLOYEES table Evaluate this SQL statement: SELECT employee_id, e.department_id, department_name, salary FROM employees e, departments d WHERE e. department_id = d.department_id; Which SQL statement is equivalent to the above SQL statement? （） SELECT employee_id, department_id, department_name, salary FROM employees WHERE department_id IN (SELECT department_id FROM departments);。 SELECT employee_id, department_id, department_name, salary FROM employees NATURAL JOIN departments;。 SELECT employee_id, d.department_id, department_name, salary FROM employees e JOIN departments d ON e.department _ id = d. department_id;。 SELECT employee_id, department_id, department_name, Salary FROM employees JOIN departments USING (e.department_id, d.department_id)。
施肥的方法之根施法
恢复已强直膝关节的活动范围应采用（） 被动运动。 助力运动。 抗阻运动。 手法按摩。 手术治疗。
A retailer is considering deploying an online transaction application on xSeries to serve their buyers. The server will need no more than four processors and will run on Red Hat Linux AS. The storage requirement is for 5TB of usable storage， and the maximum memory requirement is 4GB of RAM. Which solution will provide the best price and performance while maintaining fault tolerance？（） An x260 with dual fault tolerant ServeRAID adapters and 12 internal drives。 An x366 with dual fault tolerant NICs with a single Fibre HBA directly attached to a DS4300 with three EXP710s fully populated with 146GB Fibre Drives。 An x366 with dual fault tolerant NICs and two Fibre HBAs directly attached to a DS4300 Turbo with three EXP700s fully populated with 146GB drives。 An x445 server with dual fault tolerant HBAs and a DS4500 with two additional EXP710s fully populated with 146GB Drive。
工程建设管理组织机构由项目法人（项目业主）和（）构成。
