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【单选题】
下列各溶液稀释10倍后,pH值变化最小的是( )
A.
0.5mol/LHAc和0.5mol/LNaAc
B.
1mol/LHCl
C.
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参考答案：
举一反三
【单选题】踩左脚蹬,方向舵( )。
A.
左偏
B.
右偏
C.
不动
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【单选题】If diesel oil in this tank is used, the _____ of the oil must not exceed 120 degree F.
A.
viscosity
B.
flash point
C.
acid value
D.
temperature
查看完整题目与答案
【单选题】In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .
A.
all of the oil used by the engine through a filter
B.
some of the oil used by the engine through a filter
C.
some of the oil used by the engine through a centrifuge
D.
all of the oil used by the engine through a centrifuge
查看完整题目与答案
【单选题】_____ providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.
A.
Except for
B.
Beside
C.
Except
D.
In addition to
查看完整题目与答案
【单选题】听力原文：Following last Monday's heavy storm in the Wilmington Valley, flood waters from the Wilmington River have risen over twenty feet. Thousands of families have been evacuated from the region and are...
A.
High waters.
B.
Lack of food.
C.
More homes than families.
D.
Expensive property.
查看完整题目与答案
【单选题】听力原文： Largely because 0f rapid growth in Asia, world oil consumption is growing faster than production. Supply short fall, combined with sharply higher oil prices, is spurring the construction of new ...
A.
the rapid growth in world oil consumption
B.
the rise of China and India
C.
the construction of new pipelines is becoming more difficult
D.
the rise of oil price
查看完整题目与答案
【单选题】The oil components including polar compounds formed as a result of oxidation of some oil fractions in the marine environment dissolving in seawater defines ______．
A.
Oxidation and destruction
B.
Dissolution
C.
Oxidation and destruction
D.
Sedimentation
查看完整题目与答案
【单选题】During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? .
A.
The quantity of oil residues generated
B.
The capacity of sludge and bilge water holding tank
C.
The capacity of the oily water separator
D.
All of the above
查看完整题目与答案
【判断题】反映总体内部构成特征的指标只能是结构相对指标。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】To make chips, you cut up potatoes, put them in oil and do this. f. ______
查看完整题目与答案
相关题目：
【单选题】踩左脚蹬,方向舵( )。
A.
左偏
B.
右偏
C.
不动
查看完整题目与答案
【单选题】If diesel oil in this tank is used, the _____ of the oil must not exceed 120 degree F.
A.
viscosity
B.
flash point
C.
acid value
D.
temperature
查看完整题目与答案
【单选题】In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .
A.
all of the oil used by the engine through a filter
B.
some of the oil used by the engine through a filter
C.
some of the oil used by the engine through a centrifuge
D.
all of the oil used by the engine through a centrifuge
查看完整题目与答案
【单选题】_____ providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.
A.
Except for
B.
Beside
C.
Except
D.
In addition to
查看完整题目与答案
【单选题】听力原文：Following last Monday's heavy storm in the Wilmington Valley, flood waters from the Wilmington River have risen over twenty feet. Thousands of families have been evacuated from the region and are...
A.
High waters.
B.
Lack of food.
C.
More homes than families.
D.
Expensive property.
查看完整题目与答案
【单选题】听力原文： Largely because 0f rapid growth in Asia, world oil consumption is growing faster than production. Supply short fall, combined with sharply higher oil prices, is spurring the construction of new ...
A.
the rapid growth in world oil consumption
B.
the rise of China and India
C.
the construction of new pipelines is becoming more difficult
D.
the rise of oil price
查看完整题目与答案
【单选题】The oil components including polar compounds formed as a result of oxidation of some oil fractions in the marine environment dissolving in seawater defines ______．
A.
Oxidation and destruction
B.
Dissolution
C.
Oxidation and destruction
D.
Sedimentation
查看完整题目与答案
【单选题】During inspection of oil and oily mixtures from machinery spaces, which of the following factors should be taken into account by the PSCO? .
A.
The quantity of oil residues generated
B.
The capacity of sludge and bilge water holding tank
C.
The capacity of the oily water separator
D.
All of the above
查看完整题目与答案
【判断题】反映总体内部构成特征的指标只能是结构相对指标。( )
A.
正确
B.
错误
查看完整题目与答案
【简答题】To make chips, you cut up potatoes, put them in oil and do this. f. ______
查看完整题目与答案
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