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【单选题】
Transformer primary winding plus rated frequency rated voltage, under a given load power factor, the ratio of the difference between secondary no-load voltage and () and secondary rated voltage is called transformer voltage change rate.
A.
Secondary short-circuit voltage
B.
Secondary load voltage
C.
Primary rated voltage
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参考答案:
举一反三
【单选题】The no-load loss of a transformer =600W and short-circuit loss =2100W. When the maximum efficiency is reached, the total loss of the transformer is ().
A.
2700 W
B.
4200 W
C.
1200 W
D.
1500 W
查看完整题目与答案
【单选题】What does "patriotism" mean?
A.
the belief in socialism
B.
the love towards motherland
C.
the devotion to family
D.
the efforts for reform
查看完整题目与答案
【单选题】下列颈部CT后处理技术中,可得到类似血管造影的图像,清晰显示小血管的是()
A.
表面阴影显示
B.
曲面重建
C.
最大密度投影
D.
最小密度投影
E.
容积再现
查看完整题目与答案
【单选题】In( ) Ansai waist made a great success in the 11th Asian Games. In ( ), thousands of people performed Ansai waist in the square array in the 60th anniversary of the National Day military parade cere...
A.
1990、2008
B.
1990、2009
C.
1992、2008
D.
1992、2009
查看完整题目与答案
【单选题】At the foot of Western Hill in Kunming, there is a monument for ( ) in the War Angainst Japan.
A.
Chinese soldiers who sacrificed
B.
brave generals
C.
democratic personages
D.
the contribution of overseas Chinese
查看完整题目与答案
【单选题】观察颈部淋巴结时,常用的MPR重组成像方位时()
A.
正中矢状面
B.
矢状面
C.
横轴位
D.
冠状位
E.
斜冠状位
查看完整题目与答案
【判断题】Ansai Waist Drum can be divided into “marching”, “site” and “stage” forms.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Whic university was the most influential one during the War of Resistence Against Japan?
A.
Beijing University
B.
Southwest Associated University
C.
Nankai Univetsity
D.
Qinghua University
查看完整题目与答案
【单选题】Three-phase transformer winding connection form is star connection (Y connection), () and zigzag connection (Z connection).
A.
Series connection
B.
Parallel connection
C.
Triangular connection(D connection)
查看完整题目与答案
【单选题】下列颈部病变中,最适用于CTA检查的是()
A.
先天性病变
B.
炎症性病变
C.
肿瘤性病变
D.
血管性病变
E.
外伤性病变
查看完整题目与答案
相关题目:
【单选题】The no-load loss of a transformer =600W and short-circuit loss =2100W. When the maximum efficiency is reached, the total loss of the transformer is ().
A.
2700 W
B.
4200 W
C.
1200 W
D.
1500 W
查看完整题目与答案
【单选题】What does "patriotism" mean?
A.
the belief in socialism
B.
the love towards motherland
C.
the devotion to family
D.
the efforts for reform
查看完整题目与答案
【单选题】下列颈部CT后处理技术中,可得到类似血管造影的图像,清晰显示小血管的是()
A.
表面阴影显示
B.
曲面重建
C.
最大密度投影
D.
最小密度投影
E.
容积再现
查看完整题目与答案
【单选题】In( ) Ansai waist made a great success in the 11th Asian Games. In ( ), thousands of people performed Ansai waist in the square array in the 60th anniversary of the National Day military parade cere...
A.
1990、2008
B.
1990、2009
C.
1992、2008
D.
1992、2009
查看完整题目与答案
【单选题】At the foot of Western Hill in Kunming, there is a monument for ( ) in the War Angainst Japan.
A.
Chinese soldiers who sacrificed
B.
brave generals
C.
democratic personages
D.
the contribution of overseas Chinese
查看完整题目与答案
【单选题】观察颈部淋巴结时,常用的MPR重组成像方位时()
A.
正中矢状面
B.
矢状面
C.
横轴位
D.
冠状位
E.
斜冠状位
查看完整题目与答案
【判断题】Ansai Waist Drum can be divided into “marching”, “site” and “stage” forms.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Whic university was the most influential one during the War of Resistence Against Japan?
A.
Beijing University
B.
Southwest Associated University
C.
Nankai Univetsity
D.
Qinghua University
查看完整题目与答案
【单选题】Three-phase transformer winding connection form is star connection (Y connection), () and zigzag connection (Z connection).
A.
Series connection
B.
Parallel connection
C.
Triangular connection(D connection)
查看完整题目与答案
【单选题】下列颈部病变中,最适用于CTA检查的是()
A.
先天性病变
B.
炎症性病变
C.
肿瘤性病变
D.
血管性病变
E.
外伤性病变
查看完整题目与答案
参考解析:
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