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【单选题】
党的十九大进一步明确了决胜全面建成小康社会的战略安排。明确要确保经济社会持续健康发展。坚持深化供给侧结构性改革,促进()重点任务取得更大成效。A.
“一去一降二补”
B.
“三去一降二补”
C.
“一去一降一补”
D.
“三去一降一补”
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皮皮学刷刷变学霸
举一反三
【简答题】How to define the specific gravity of the crude oil?
【判断题】The specific gravity of a gas is defined as the densities of the gas and air when both are measured at the same temperature and pressure.
A.
正确
B.
错误
【单选题】已知某正弦交流电压的表达式为:u=220 2 sin628t V,则此正弦交流电压的有效值和周期分别为________ 。
A.
2 V,314s
B.
220V,0.01s
C.
220V,50s
D.
2 V,0.02s
【单选题】_____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuring scale, that makes 150 tons.
A.
The piston rod
B.
The push rod
C.
The sounding rod
D.
The connecting rod
【单选题】______ the weight and the specific gravity of a body, you can calculate its volume.
A.
Giving
B.
Gives
C.
Given
D.
Give
【单选题】The specific gravity of fuel oil is a ___
A.
absolute value
B.
relative value
C.
constant
D.
set value
【单选题】The specific gravity of fuel oil is a _____.
A.
absolute value
B.
relative value
C.
constant value
D.
set value
【单选题】已知某正弦交流电压:U=220V,f=50Hz,初相为60°,则其正确的瞬时表达式为( )
A.
u=220sin(50t+60°)V
B.
u=220sin(314t+60°)V
C.
u=311sin(50t+60°)V
D.
u=311sin(314t+60°)V
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