A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）..

第1题

[单选题] The feed water to the boiler will comprise （）.

A、condensate  B、a small amount of make-up feed  C、A and B  D、None of the above  

第2题

[] If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）.

A、A.The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true  B、B.The readings are too low and the amount of the error must be subtracted from the compass to obtain true  C、C.The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true  D、D.The readings are too high and the amount of the error must be subtracted from the compass to obtain true  

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第3题

[] If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）

A、A.The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true  B、B.The readings are too low and the amount of the error must be subtracted from the compass to obtain true  C、C.The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true  D、D.The readings are too high and the amount of the error must be subtracted from the compass to obtain true  

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第4题

[单选题] A centrifuge arranged to separate impurities and small amounts of water from oil is known as （）.

A、an oily water separator  B、a purifier  C、a centrifugal compressor  D、a clarifier  

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第5题

[] Deadfreight is the charge for the（）.

A、A.carriage of demise cargo  B、B.cost of transshipment of over-carried cargo  C、C.difference in the amount of cargo loaded and the amount of cargo discharged  D、D.difference in the amount of cargo loaded and the amount of cargo booked，through no fault of the vessel  

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第6题

[单选题] When the fuel oil is burning in the combustion chamber, it （）.

A、gives up large amount of heat  B、gives off large amount of heat  C、gives up large amount of steam  D、gives off large amount of steam  

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第7题

[单选题] When applying thermal compound to the top of a CPU, apply a:（）

A、thick layer, making sure to cover the sides of the CPU.  B、very thin layer, making sure to cover the CPU.  C、little bit on the tip of a brush, making sure to cover the top and sides of the CPU.  D、small amount in the center of the CPU.  

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第8题

[单选题] A C02 portable extinguisher is annually checked by（）.

A、reading the gage pressure  B、weighing the extinguisher  C、discharging a small amount of CO₂  D、seeing if the seal has been broken  

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第9题

[单选题] 0n a vessel ,a C02 extinguisher is checked by（）.

A、reading the gage pressure  B、weighing the extinguisher  C、discharging a small amount of CO₂  D、seeing if the seal has been broken  

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A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）

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