The STUDENT_GRADES table has these columns: The register has requested a report listing the students' grade point averages (GPA), sorted from highest grade point average to lowest within each semester, starting from the earliest date. Which statement accomplishes this?（） SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end ASC, gpa ASC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end, gpa DESC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end DESC;。 SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end ASC。
模板工程设计的安全性指标包括（）。 强度。 刚度。 平整度。 稳定性。 实用性。
李某，男性，40岁，因急性坏死性胰腺炎人院，准备给予完全胃肠外营养。不应列为一般静脉营养液的是（） 葡萄糖。 脂肪乳剂。 复方氨基酸。 人体白蛋白。 水解蛋白。
Examine the structure of the EMPLOYEES, DEPARTMENTS, and TAX tables. EMPLOYEES NOT NULL, Primary EMPLOYEE_ID NUMBER Key VARCHAR2 EMP_NAME (30) VARCHAR2 JOB_ID (20) SALARY NUMBER References MGR_ID NUMBER EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table DEPARTMENTS NOT NULL, DEPARTMENT_ID NUMBER Primary Key VARCHAR2 DEPARTMENT_NAME 30 References MGR_ID column MGR_ID NUMBER of the EMPLOYEES table TAX MIN_SALARY NUMBER MAX_SALARY NUMBER TAX_PERCENT NUMBER For which situation would you use a nonequijoin query?（） To find the tax percentage for each of the employees.。 To list the name, job id, and manager name for all the employees.。 To find the name, salary, and department name of employees who are not working with Smith.。 To find the number of employees working for the Administrative department and earning less then 4000.。 To display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned.。
开井操作，泵压升起后，井口人员接到命令，应把回压阀门先打开，接着把生产闸门打开（） 全打开。 打开1/2。 打开1/3。
While creating a database using Database Configuration Assistant tool， you created a database default temporary tablespace. Which activity would cause the default temporary tablespace of the database to be used？（）
