躁狂发作的临床特征有（） ["心境高涨，自我感觉好","思维奔逸，音联意联","思维被洞悉感","爱管闲事、挥霍","行为怪异"]
（）起，国家首次开展全面实施教师资格的认定工作，教师资格证书制度进入实际操作阶段。
What is the phenomenon called where different wavelengths of light travel at different speeds?（） ["OSNR","dispersion","light skew","attenuatio"]
Which of the following statements is NOT true about RMAN？（） ["It improves usability by enabling you to reuse the scripts to perform recovery operations.","It detects block corruption while restoration and recovery operations.","It enables you to perform block media recovery.","It is capable to recover through unrecoverable operations， with only full database backups."]
合成润滑油
卵鞍
