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2015-09-11 发布于重庆
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GMDSS英语阅读试题400.doc

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GMDSS英语阅读试题400-500 2009年05月21日星期四 19:01 401. The general benefit of the GMDSS is to ______.A. enable SAR operations to start with minimum delayB. give facilities to marine communicationC. reduce sharply the chances of ship’s sinkingD. both A and C402. The GMDSS is a world-wide communication network combining ______ with ______.A. satellite /terrestrial system???????? B. INMAARSAT/COSPAS-SARSATC. SART / EPIRB????????????????? D. geostationary/polar-orbiting satellites403. The complying vessels can transmit ship-to-shore distress alerts by at least ______.A. one means, whether satellite or terrestrial techniquesB. two means, whether satellite or terrestrial techniquesC. two separate and independent means, each using different radio communication servicesD. two means, such as MF DSC and HF DSC404. The position of INMARSAT AOR-W satellite is ______ above the equator.A. 55.5 W????????? B. 180E???????? C. 15.5W???????? D. 64.5E405. Within the polar areas it is ______ to see a satellite in geostationary orbit.A. impossible?????? B. possible?????? C. easy?????????? D. difficult406. The INMARSAT system is open for use by ______ countries on a non-discriminatory basis.A. some?????????? B. lots of???????? C. many????????? D. all407. ______ communication are intership VHF radio telephone communication.A. ship-to-shore???? B. shore-to-ship????? C. bridge-to-bridge????? D. a, b, and c408. The GMDSS must combine all various subsystems, because ______.A. they all have different limitations with respect to coverageB. they all have different limitations in the technology they useC. different systems apply to different ships???????? D. all of above409. Actually, the date for entry into effect will be 1st February ______. Though the text does not tell us about it.A. 1995?????????? B. 1998??????????? C. 1999???????? D. 2000410. The DSC frequency for distress alerting in area A2 is ______.A. 2182khz??????? B. 2174.5kfz??????? C. 2191khz????? D. 2187.5kh12