由于长输管道距离较长，水击发生后，水击压力波向上游传递过程中，会逐渐（）。
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公众陆地移动通信网与公用电话网的连接方式有用户线入网和中继线入网两种方式。
A. 正确
B. 错误
当代西方新自由主义经济学思潮特别是（）首先对政府失败问题进行较系统的研究。
基坑支护结构设计的重要性系数应为（）
A. 1．00
B. 1．2
C. 1．10
D. 0．90
Examine the data in the EMPLOYEES table: LAST_NAME DEPARTMENT_ID SALARY Getz 10 3000 Davis 20 1500 Bill 20 2200 Davis 30 5000 ... Which three subqueries work? （）
A. SELECT * FROM employees where salary > (SELECT MIN(salary) FROM employees GROUP BY department _ id);
B. SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id);
C. SELECT distinct department_id FROM employees Where salary > ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id);
D. SELECT department_id FROM employees WHERE SALARY > ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id);
E. SELECT last_name FROM employees Where salary > ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id);
F. SELECT department_id FROM employees WHERE salary > ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY))
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