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单选题
The depth（）a shallow patch，lying about 1.3 miles southeastward of Nanshan Tou lighthouse reduces to about 6.1 meters.
A
above
B
over
C
up
D
upon
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单选题What does Mr. Thompson NOT ask regional directors to do?A
Call a representative from the personnel departmentB
Be ready to participate in the conference discussionsC
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Submit proposals for the company’s reorganization
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单选题When visibility is reduced to about 5 miles, we say that visibility is（）.A
very goodB
goodC
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单选题When anchoring,it is a common rule of thumb to use a length of chain（）.A
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seven to ten times the depth of waterC
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单选题In moderate wind and current what should be the length of chain with a single anchor?（）A
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8 times the depth of the water in deep water
考题
单选题The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.A
layB
liesC
being lainD
lying
考题
单选题The height of tide is the （）.A
depth of water at a specific time due to tidal effectB
difference between the depth of the water and the area's tidal datumC
difference between the depth of the water and the high water tidal levelD
difference between the depth of the water at high tide and the depth of the water at low tide
考题
单选题Which statement is FALSE concerning the interleave depth value？（）A
A higher interleave depth provides more protection from burst of noise on the HFC networkB
Higher interleave depth increase downstream latencyC
Lower interleave depth cause some packet loss on typical HFC networksD
None ofthe above
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单选题This passage is mainly about _____.A
how to make an effective business presentationB
how to present strong ideas in a presentationC
how to focus on the depth of coverageD
how to prepare a powerful diagram
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单选题In bad weather，what length of chain should be used with a single anchor? （）A
3 times the depth of waterB
6 times the depth of waterC
10 times the depth of waterD
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单选题All echo-sounders can measure the（）.A
actual depth of waterB
actual depth of water below keelC
average depth from waterline to hard bottomD
average depth of water to soft bottom
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单选题When anchoring a vessel under normal conditions，which scope of chain is recommended? （）A
Four times the depth of waterB
Two and one-half times the depth of waterC
Five to seven times the depth of waterD
Fifteen times the depth of water
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