第13题: [单项选择]Question 6 is based on the following news. At the end of the news item, you will be given 10 seconds to answer the question. Now listen to the news. 参考答案:A 答案解析:[听力原文] Red Cross officials in the Philippines estimate that more than 200 people are dead and
第15题: [单项选择]安装在驾驶台上的SART,有关应答信号发射正确的是() A. 置SART在自动位置,它将自动发射应答信号 B. SART在自动位置时,收到X波段雷达的触发脉冲后就发射应答信号 C. SART在手动位置时,收到X波段雷达的触发脉冲就发射应答信号 D. SART浸水后,无论置在自动或手动位置,收到X波段雷达的触发脉冲就发射应答信号 参考答案:D