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调测工程师通常用频率计测量基站天线驻波比。

A. 正确
B. 错误

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男性，30岁，近半年总觉得有人跟踪他，常听见有人在议论如何对付他，继而出现闷闷不乐，整天闭门不出，写信给公安局要求保护。该病人诊断最可能是（）

A. 反应性抑郁
B. 抑郁症
C. 躁狂症
D. 精神分裂症偏执型
E. 精神分裂症单纯型

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机车轮对的轮箍或轮毂不得松弛。（）

A. 正确
B. 错误

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枚乘《七发》在文学史上有哪些的开拓性？

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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?（）

A. To find the tax percentage for each of the employees.
B. To list the name, job id, and manager name for all the employees.
C. To find the name, salary, and department name of employees who are not working with Smith.
D. To find the number of employees working for the Administrative department and earning less then 4000.
E. To display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned.

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调测工程师通常用频率计测量基站天线驻波比。

A. 正确 B. 错误

男性，30岁，近半年总觉得有人跟踪他，常听见有人在议论如何对付他，继而出现闷闷不乐，整天闭门不出，写信给公安局要求保护。该病人诊断最可能是（）

机车轮对的轮箍或轮毂不得松弛。（）

枚乘《七发》在文学史上有哪些的开拓性？

A. 正确
B. 错误