[英语学习]GMDSS通信英语上海500题带翻译.docVIP

英语阅读500题 （单项选择题） IMO has decided决定 that all ships over 300TGt must be fitted with a NAVTEX receiver ______ .IMO在什么时候决定300总吨以上必须配备NAVTEX接收机。 A. by 01 Feb 1992 B. by 01 Aug 1993 C. between 01 Feb 1992 and 01 Feb 1999 D. before 01 Feb 1992 GMDSS is to provide ______ with reliable可靠的 communication . GMDSS提供给--所有客船和300总吨及以上货船在海上航行--的可靠通信。 A. all large passenger vessels B. freighters of more than 300gt in coastal waters C. all passenger ships and cargo ships engaged in international-voyages D. all passenger ships and cargo ships of 300gt upwards in open sea The complying遵从vessels can transmit ship-to-shore distress alerts by at least ______ . 这个遵守船舶（公约船）能发送船到岸遇险报警至少通过--两套分开和独立设备方法，使用不同的无线电通信业务。 A. One means, whether satellite or terrestrial techniques B. Two means,途径 whether无论satellite or terrestrial techniques C. Two separate and independent独立的 means, each using different radio communication services D. Two means, such as MF DSC and HF DSC The quality of the message can be affected 受到影响by ___ .信息的质量会受--气候--影响。 A. climate气候 B. sunshine阳光 C. human being人类生存 D. both a and b Within the polar areas it is ______ to see a satellite in geo-stationary orbit . 在两极地区内是--不可能--看到地球静止轨道卫星的轨道。 A. impossible B. possible可能 C. easy 容易 D. difficult困难 The Inmarsat system is open for use by ______ countries on a non-discriminatory无差别对待 basis . 国际海事卫星系统对--所有--国家在一个无差别待遇的基础上开放使用。 A. some B. lots of C. many D. all With the help of GMDSS ______ can be alerted to a distress incident as soon as possible . 在GMDSS的帮助下--岸上和海上搜救当局--能尽快发出遇险报警。 A. all ships in a large sea area B. only the sea authorities ashore C. the SAR units ashore and at sea D. the port radios and the coast stations In areas covered by Inmarsat HF can be used as an ______ to satellite communications. 在Inmarsat覆盖地区内高频可以作为一种--替代--卫星通信设施。 A. alternation交替 B. alternate代替 C. alter更改 D. alterna