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【单选题】
When the secondary current of the transformer increases, the primary current ().
A.
Reduce;
B.
The same;
C.
Increase accordingly;
D.
Not necessarily.
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参考答案：
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【多选题】下列关于口腔颌面部相关疾病CT检查要点的叙述,正确的是()
A.
考虑恶性肿瘤时,增强扫描应加大扫描范围
B.
对于颌面软组织病变CT扫描应适当增加曝光条件,以保证足够的密度分辨率
C.
观察舌体、软腭、会厌、口咽后壁等结构时,以正中矢状面重组成像为主
D.
颌面部外伤时,扫描要求采集层厚尽可能薄,重建间距窄及采用高分辨卷积核
【单选题】What kingdom was established in Yunnan during Song Dynasty?
A.
Cuan Kingdom
B.
Dali Kingdom
C.
Dian Kingdom
D.
Nanzhao Kingdom
【单选题】With the political support of Tang Dynasty, what kingdom was established nearby Erhai lake in Yunnan?
A.
Shu Kingdom
B.
Wei Kingdom
C.
Nanzho Kingdom
D.
Wu Kingdom
【单选题】When was Yunnan officially entitled a province for the first time in the history?
A.
In Tang Dynasty
B.
In Song Dynasty
C.
In Ming Dynasty
D.
In Yuan Dynasty
【单选题】A three-phase power transformer , , D,y is connected, and the excitation current is ignored during load. When the low-voltage side phase current is 808.3a, the phase current of the high-voltage side i...
A.
808.3A
B.
56A
C.
18.67A
D.
32.33A
【单选题】When did Han people become the majority of the population in Yunnan?
A.
In Tang Dynasty
B.
In Song Dynasty
C.
In Ming Dynasty
D.
In Yuan Dynasty
【单选题】three-phase power transformer magnetic potential balance equation is ().
A.
The algebraic sum of the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
B.
The sum of the time vectors of the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
C.
The arithmetic difference between the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
相关题目：
【多选题】下列关于口腔颌面部相关疾病CT检查要点的叙述,正确的是()
A.
考虑恶性肿瘤时,增强扫描应加大扫描范围
B.
对于颌面软组织病变CT扫描应适当增加曝光条件,以保证足够的密度分辨率
C.
观察舌体、软腭、会厌、口咽后壁等结构时,以正中矢状面重组成像为主
D.
颌面部外伤时,扫描要求采集层厚尽可能薄,重建间距窄及采用高分辨卷积核
【单选题】What kingdom was established in Yunnan during Song Dynasty?
A.
Cuan Kingdom
B.
Dali Kingdom
C.
Dian Kingdom
D.
Nanzhao Kingdom
【单选题】With the political support of Tang Dynasty, what kingdom was established nearby Erhai lake in Yunnan?
A.
Shu Kingdom
B.
Wei Kingdom
C.
Nanzho Kingdom
D.
Wu Kingdom
【单选题】When was Yunnan officially entitled a province for the first time in the history?
A.
In Tang Dynasty
B.
In Song Dynasty
C.
In Ming Dynasty
D.
In Yuan Dynasty
【单选题】A three-phase power transformer , , D,y is connected, and the excitation current is ignored during load. When the low-voltage side phase current is 808.3a, the phase current of the high-voltage side i...
A.
808.3A
B.
56A
C.
18.67A
D.
32.33A
【单选题】When did Han people become the majority of the population in Yunnan?
A.
In Tang Dynasty
B.
In Song Dynasty
C.
In Ming Dynasty
D.
In Yuan Dynasty
【单选题】three-phase power transformer magnetic potential balance equation is ().
A.
The algebraic sum of the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
B.
The sum of the time vectors of the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
C.
The arithmetic difference between the primary and secondary magnetic potentials is equal to the synthetic magnetic potentials
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