Some of these shoals have been disproved and are not charted. Nevertheless mariners should （）with particular caution in this area...

第1题

[单选题] （）these children know the answer.

A、Most B、Some C、Most of D、Few

第2题

[单选题] After you enter Thimble Shoal Channel，you will alter course to pass between Trestle “A” and “B”. Which channel should you use?（）

A、Thimble Shoal Main Channel or the South Auxiliary Channel B、Any of the channels but keep to the right hand side C、The South Auxiliary Channel D、Thimble Shoal Main Channel

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第3题

[单选题] why do some stations keep silence?（）

A、Because they are not engaged in the distress traffic B、they will affect the transmission of the distress traffic C、The powers of these stations are very weak D、They are not in charge of search and rescue

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第4题

[单选题] Branford reef is（）.

A、a hard sand shoal marked with a light B、completely submerged at all stages of the tide C、surrounded by rocks awash at low water spring tides D、a small，low，sandy islet surrounded by shoal water

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第5题

[单选题] A tropical storm is building strength some distance from your ship. Waves are coming from the east，with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated? （）

A、To the north of you B、To the south of you C、To the east of you D、To the west of you

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第6题

[简答题] What are some of the main stages of a lesson?

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第7题

[简答题] What are some of the advantages of using a cassette recorder?

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第8题