题目内容（请给出正确答案）

[主观题]

Navigational charts are subject to frequent changes，the important ones of which are promul

gated by ________ ．

A.Admiralty Notices to Mariners

B.Mariner's Handbook

C.Catalogue

D.Sailing Directions

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更多“Navigational charts are subjec…”相关的问题

第1题

Navigational charts are ______ frequent changes，the important one of which are promulgated

by Admiralty Notices to Mariners．

A.published with

B.combined with

C.in connection with

D.subject to

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第2题

Coast Pilots and navigational charts are kept corrected and up-to-date by using the ______

A.pilot charts

B.Notices to Mariners

C.Tide Tables

D.Current Tables

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第3题

No navigational aids are shown and the chart is not kept corrected for alterations in dept

hs inside the pecked lines． For more detailed information，the larger scale charts must be ______.

A.referred to

B.appreciated

C.met with

D.concerned

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第4题

No navigational aids are shown and chart is not kept corrected for alterations in depths i

nside the pecked lines．For more detailed information，the larger scale charts must be______．

A.bought

B.analyzed

C.consulted

D.Published

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第5题

Loading cargo operation in hold No.3 stopped owing to ______．A.gangs employedB.windlass tr

Loading cargo operation in hold No.3 stopped owing to ______．

A.gangs employed

B.windlass trouble

C.gangs unavailable

D.shortage of navigational charts

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第6题

材料：A block may not only indicate the insertion of new information，but also the omission

材料：

A block may not only indicate the insertion of new information，but also the omission of matter previously shown．The text of the Notice should invariably be read carefully．The limiting lines of a block are determined for convenience of reproduction．They need not be strictly adhered to when cutting out for pasting on the chart，provided that the preceding paragraph is taken into consideration．Owing to distortion the bocks do not always fit the chart exactly．When pasting a block on a chart，therefore，care should be taken that the more important navigational features fit as closely as possible．This is best done by fitting the block while it is dry and making two or three pencil ticks round the edges for use as fitting marks after the paste is applied to the chart．

问题：

DISTORTION means that ______．

A.the change in form of the block

B.extract of in form of the block

C.the extension in form of the block

D.the increasing of the data in the block

When cutting out and pasting the block care should be used to ensure that ______．A.it be dry enough

B.pencil should be used properly

C.the limits are adhered strictly

D.the more important navigational features fit as closely as possible

The block is not used to ______ ．A.show omissions

B.provide new information