At the same time，it is（）for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due time...

A、Its accuracy remains the same at all latitudes B、It seeks the true meridian C、It can be used near the Earth's magnetic poles D、If an error exists，it is the same on all headings

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第7题

[单选题] On a lifeboat equipped with Rottmer-type releasing gear，turning the releasing lever releases（）.

A、the painter B、the after boat fall only if the boat is waterborne C、both falls at the same time only if the boat is waterborne D、both falls at the same time even if the boat has not reached the water

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第8题

[判断题] When deployed to transmission application of wavelengths up to 160 wavelengths, the ZXWM M900 performs optical amplification of signals at the C band and the L band independently at the same time.

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第9题

[] A radar contact will remain stationary on a relative motion radar display only when it is（）.

A、A.on the same course as your vessel B、B.at the same speed as your vessel C、C.on the same course and speed as your vessel D、D.on a reciprocal course at the same speed as your vessel

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At the same time，it is（）for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due time.

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