第5题: [单项选择]A user installed a Blu-Ray drive in their PC. The user reports that the new drive and their existing DVD-RW drive are not operating. Which of the following needs to be replaced?() A. Power supply B. DVD-RW C. Blu-Ray drive D. Motherboard 参考答案:A
第6题: [单项选择]该患者可能诊断为 A. 先兆流产 B. 完全流产 C. 习惯性流产 D. 流产感染 E. 以上都不对 参考答案:D