搜题

【单选题】

A sextant having an index error that is off the arc has a（）.

A、positive correction

B、dip error

C、negative correction

D、semidiameter error

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更多“A sextant having an index error that is off the arc has a（）.”相关的问题

第1题

[单选题] A sextant having an index error that is off the arc has a（）.

A、positive correction B、dip error C、negative correction D、semidiameter error

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第2题

[单选题] A （）is very much like an ordinary telephone.

A、VHF set B、radar C、GPS D、sextant

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第3题

[] A marine sextant has the index arm set at zero and the reflected image of the horizon forms a continuous line with the actual image. When the sextant is rotated about the line of sight the images separate. The sextant has（）.

A、A.error of perpendicularity B、B.side error C、C.prismatic error D、D.centering error

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第4题

[单选题] Finally the two sides have（）

A、reached agreement B、taken an agreement C、done an agreement D、made an agreement

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第5题

[单选题] THE MASTER OR AN OFFICER SHOULD HANDING OVER THE WATCH SHOULD SAY（）.

A、I NOW HAVE THE WATCH. B、I NOW HAVE THE CONN. C、YOU NOW HAVE THE WATCH. D、YOU NOW HAVE THE CONN.

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第6题

[] In what state are the datafiles of a tablespace after a TSPITR has been successfully completed？（）

A、A. The datafiles have an ONLINE status. B、B. The datafiles have an OFFLINE status. C、C. The datafiles have an ONLINE status and are in hot backup mode prepared for an online backup. D、D. The datafiles have an OFFLINE status and are in hot backup mode for an online backup. E、E. The datafiles are in STANDBY mode.

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第7题

[] Having a good command of English is（）an easy thing. Having a good command of English is（）an easy thing.

A、A.by all means B、B.by any means C、C.by every means D、D.by no means

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第8题

[] （）is an equipment used to detect the presence of ships ,buoys,coast and many other targels and to obtain range and bearing of these targets.

A、A.The marine sextant B、B.The chronometer C、C.The echo sounder D、D.The radar

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第9题

[] （）for many years，the AB passed the examination and became an officer.

A、A.Having ignored him B、B.To have been ignored C、C.To be ignored D、D.Having been ignored

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