题目内容

患者男，26岁。尿频，尿道有异物感及排白色黏液伴阴部不适，早泄，失眠近1年。怀疑为慢性前列腺炎，确诊应做的检查是（）

A. 尿常规
B. 前列腺液常规
C. 尿培养
D. 尿液涂片找细菌
E. 前列腺液培养

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When executing a SQL workload, you choose to generate execution plans only, without collecting execution statistics. Which two statements describe the implications of this? （）(Choose two.)

A. It produces less accurate results of the comparison analysis.
B. It automatically calls the SQL Tuning Advisor for recommendations.
C. It shortens the time of execution and reduces the impact on system resources.
D. Only the changes in the execution plan, and not performance regression, are detected.

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