[单项选择]A RADIO SIGNAL FROM A DISTRESSED VESSEL AUTOMATICALLY DIRECTED TO A RCC GIVING POSITION,IDENTIFICATION,COURSE AND SPEED OF THE VESSEL AS WELL AS THE NATURE OF DISTRESS is known as(). A. Distress alert B. Safety alert C. Emergency alert D. General alert
第5题: [单项选择]The "do this" in the end sentence in the first paragraph refers to ______ . A. advertising in the newspapers B. reminding people of their products C. employing attractive salesgirls to distribute samples D. organizing competitions with prizes for the winners 参考答案:B 答案解析:[解析] 语义理解题。代词this指的是应该是前一句的内容,即“They always remind the customers of the name and the qualities of th
第6题: [单项选择]失代偿时缓解颅压最有效的方法为 A. 使用脱水剂 B. 降低血压 C. 脑室穿刺引流 D. 头高脚低位 E. 呋塞米 参考答案:C
第22题: [多项选择]关于站点勘察,下列说法正确的是() A. 需要进行周围环境照片的拍摄; B. 如果扇区正对方向存在遮挡,则信号可能反射到背面的区域; C. 对于密集城区的站点,选用架设在宽阔马路边上的站点时,需要避免基站的覆盖范围过大; D. 站点勘察过程中,如果天线挂高需要增高的比较多,需要考虑建筑物的承重是否能满足要求; 参考答案:A, B, C, D