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举一反三
【单选题】When ship navigating in rough sea, the correct operation is .
A.
navigating with a low diesel engine speed
B.
navigating with a stable diesel engine speed
C.
increasing the efficiency of propeller
D.
increasing fuel injection
【简答题】从账簿中取数,编制结转损益类账户的分录
【单选题】如用重结晶法除去某产品中杂质，为此要选择合适的溶剂，溶剂的下列特点不可取的是（ ）
A.
杂质在溶剂中的溶解度常温时很小，加热时很大
B.
在室温时，产品在溶剂中易溶
C.
产品在溶剂中的溶解度随温度升高而迅速加大
D.
在同一溶剂中，产品比杂质易溶
【单选题】When navigating using GPS，what is an indicator of the geometry of the satellites that your receiver is locked onto ().
A.
Horizontal Dilution of Precision
B.
Selective Availability
C.
Doppler Shifting
D.
Precision Coding
【单选题】When navigating a vessel，you（）.
A.
can always rely on a buoy to be on station
B.
can always rely on a buoy to show proper light characteristics
C.
should assume a wreck buoy is directly over the wreck
D.
should never rely on a floating aid to maintain its exact position
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