On this chart only the principle （） to navigation are shown．

A、equipment's

B、tools

C、apparatus

D、aids

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更多“On this chart only the principle （） to navigation are shown．”相关的问题

第1题

[单选题] Traffic lanes（）on this chart are recommended for use by all vessels.

A、show B、showed C、showing D、shown

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第2题

[单选题] Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．

A、Mercator charts／Loran charts B、Admiralty charts／Routeing charts C、large scale charts／small scale charts D、small scale charts／large scale charts

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第3题

[单选题] The changes in the channel’s sands and buoys on this coast are （） this chart can not be considered as a safe guide of the channel．

A、frequent B、so frequent C、frequent that D、so frequent that

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第4题

[单选题] The changes in the channel’s sands and buoys on this coast are（）this chart can not be considered as a safe guide of the channel.

A、frequent B、so frequent C、frequent that D、so frequent that

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第5题

[单选题] Contour elevations on this chart refer to heights in feet above mean （）.

A、lower low water B、high water C、low water D、sea level

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第6题

[单选题] How is the annual rate of change for magnetic variation shown on a pilot chart?（）

A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown

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第7题

[单选题] How is the annual rate of change for magnetic variation shown on a pilot chart?（）

A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown