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【单选题】
three-phase transformer,
wiring, its ratio is ().
A.
14.43
B.
2
C.
43.3
D.
25
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参考答案:
举一反三
【单选题】The number of turns on the primary side of the transformer increases by 5%, and the number of turns on the secondary side decreases by 5%, and the excitation reactance will ().
A.
The same
B.
Increased about 10%
C.
Reduced about 10%
查看完整题目与答案
【单选题】The Kingdom of Dian was famous for the ______ .
A.
minorities
B.
bronze metallurgy
C.
troops
D.
farming
查看完整题目与答案
【单选题】下列有关鼻和鼻窦外伤骨折CT诊断需求的叙述,错误的是()
A.
鼻骨骨折可行薄层冠状CT平扫骨窗观察骨折线
B.
三维重建对复合骨折和细微骨折的显示优于X线
C.
CT显示软组织损伤及脑脊液鼻漏优于MR
D.
CT可判断骨折的情况和类型
E.
CT可发现邻近结构的损伤
查看完整题目与答案
【单选题】What does "bronzeware" mean?
A.
金属器皿
B.
铜器
C.
青铜
D.
青铜器
查看完整题目与答案
【单选题】When a 50Hz transformer is connected to a 60Hz power grid, the size of the external voltage remains unchanged, and the excitation current will be ().
A.
increase
B.
reduce
C.
The same
查看完整题目与答案
【单选题】When the transformer is connected to the rated voltage at the primary side and the pure resistive load at the secondary side, the power input from the primary side ().
A.
Contains only active power;
B.
Contains only inductive reactive power;
C.
It contains both active power and inductive reactive power;
D.
It contains both active power and capacitive reactive power.
查看完整题目与答案
【多选题】Which ones were the well-known cultures in ancient Yunnan?
A.
ethnic culture
B.
bronze culture in the ancient Dian Kingdom
C.
Cuan culture in Qujing
D.
Nanzhao culture in Dali
查看完整题目与答案
【单选题】鼻和鼻窦CT检查技术窗技术中,重点观察骨窗的是()
A.
炎性病变
B.
囊肿性病变
C.
肿瘤性病变
D.
先天性发育畸形
E.
外伤性病变
查看完整题目与答案
【单选题】Transformer load ( ) increases, theoretically speaking, its main flux ().
A.
Slightly increased;
B.
Slightly decreased;
C.
Much larger;
D.
It's a lot smaller.
查看完整题目与答案
【判断题】咀嚼肌间隙内的肿块性病变,扫描范围应包括下颌神经的通路。( )
A.
正确
B.
错误
查看完整题目与答案
相关题目:
【单选题】The number of turns on the primary side of the transformer increases by 5%, and the number of turns on the secondary side decreases by 5%, and the excitation reactance will ().
A.
The same
B.
Increased about 10%
C.
Reduced about 10%
查看完整题目与答案
【单选题】The Kingdom of Dian was famous for the ______ .
A.
minorities
B.
bronze metallurgy
C.
troops
D.
farming
查看完整题目与答案
【单选题】下列有关鼻和鼻窦外伤骨折CT诊断需求的叙述,错误的是()
A.
鼻骨骨折可行薄层冠状CT平扫骨窗观察骨折线
B.
三维重建对复合骨折和细微骨折的显示优于X线
C.
CT显示软组织损伤及脑脊液鼻漏优于MR
D.
CT可判断骨折的情况和类型
E.
CT可发现邻近结构的损伤
查看完整题目与答案
【单选题】What does "bronzeware" mean?
A.
金属器皿
B.
铜器
C.
青铜
D.
青铜器
查看完整题目与答案
【单选题】When a 50Hz transformer is connected to a 60Hz power grid, the size of the external voltage remains unchanged, and the excitation current will be ().
A.
increase
B.
reduce
C.
The same
查看完整题目与答案
【单选题】When the transformer is connected to the rated voltage at the primary side and the pure resistive load at the secondary side, the power input from the primary side ().
A.
Contains only active power;
B.
Contains only inductive reactive power;
C.
It contains both active power and inductive reactive power;
D.
It contains both active power and capacitive reactive power.
查看完整题目与答案
【多选题】Which ones were the well-known cultures in ancient Yunnan?
A.
ethnic culture
B.
bronze culture in the ancient Dian Kingdom
C.
Cuan culture in Qujing
D.
Nanzhao culture in Dali
查看完整题目与答案
【单选题】鼻和鼻窦CT检查技术窗技术中,重点观察骨窗的是()
A.
炎性病变
B.
囊肿性病变
C.
肿瘤性病变
D.
先天性发育畸形
E.
外伤性病变
查看完整题目与答案
【单选题】Transformer load ( ) increases, theoretically speaking, its main flux ().
A.
Slightly increased;
B.
Slightly decreased;
C.
Much larger;
D.
It's a lot smaller.
查看完整题目与答案
【判断题】咀嚼肌间隙内的肿块性病变,扫描范围应包括下颌神经的通路。( )
A.
正确
B.
错误
查看完整题目与答案
参考解析:
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