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【单选题】
A single-phase transformer
is in no-load operation, and the main magnetic flux of the iron core is
when it is connected with 220V side for a time, and
when it is connected with 110V side for a second time, then ().
A.
B.
C.
。
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参考答案:
举一反三
【单选题】Other conditions remain unchanged. If the number of turns increases by 10%, and the size of and will be ().
A.
Increase to 1.1 times,
unchanged,
increased
B.
Increased by 1.1 times,
remained unchanged, and
decreased
C.
Increase to 1.21 times,
unchanged,
increased;
D.
Increased by 1.21 times,
remained unchanged, and
decreased.
查看完整题目与答案
【单选题】下列有关鼻和鼻窦CT相关疾病CT检查要点的叙述,错误的是()
A.
常规CT检查主要为横轴位和矢状位扫描
B.
鼻窦炎症和外伤时冠状位扫描能更好地观察病变
C.
重建算法以骨算法为主
D.
鼻骨骨折和急性鼻窦炎可用低剂量扫描
E.
肿瘤性病变扫描范围要足够大
查看完整题目与答案
【单选题】Bronze is a kind of ______, which is the mixture of different metals.
A.
alloy
B.
copper
C.
lead
D.
iron
查看完整题目与答案
【判断题】It is not recommended for the tour guide to purchase goods for tourists.
A.
正确
B.
错误
查看完整题目与答案
【单选题】下列有关鼻部外伤CT检查技术的叙述,错误的是()
A.
横断位扫描取仰卧位,听眶下线垂直于床面
B.
横断位扫描基线平行于听鼻线
C.
冠状位扫描头尽量后仰,尽量使听眶下线平行于床面 D冠状位扫描基线平行于鼻骨长轴
D.
容积扫描范围从鼻根至鼻尖
查看完整题目与答案
【单选题】three-phase transformer, wiring, its ratio is ().
A.
14.43
B.
2
C.
43.3
D.
25
查看完整题目与答案
【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
相关题目:
【单选题】Other conditions remain unchanged. If the number of turns increases by 10%, and the size of and will be ().
A.
Increase to 1.1 times,
unchanged,
increased
B.
Increased by 1.1 times,
remained unchanged, and
decreased
C.
Increase to 1.21 times,
unchanged,
increased;
D.
Increased by 1.21 times,
remained unchanged, and
decreased.
查看完整题目与答案
【单选题】下列有关鼻和鼻窦CT相关疾病CT检查要点的叙述,错误的是()
A.
常规CT检查主要为横轴位和矢状位扫描
B.
鼻窦炎症和外伤时冠状位扫描能更好地观察病变
C.
重建算法以骨算法为主
D.
鼻骨骨折和急性鼻窦炎可用低剂量扫描
E.
肿瘤性病变扫描范围要足够大
查看完整题目与答案
【单选题】Bronze is a kind of ______, which is the mixture of different metals.
A.
alloy
B.
copper
C.
lead
D.
iron
查看完整题目与答案
【判断题】It is not recommended for the tour guide to purchase goods for tourists.
A.
正确
B.
错误
查看完整题目与答案
【单选题】下列有关鼻部外伤CT检查技术的叙述,错误的是()
A.
横断位扫描取仰卧位,听眶下线垂直于床面
B.
横断位扫描基线平行于听鼻线
C.
冠状位扫描头尽量后仰,尽量使听眶下线平行于床面 D冠状位扫描基线平行于鼻骨长轴
D.
容积扫描范围从鼻根至鼻尖
查看完整题目与答案
【单选题】three-phase transformer, wiring, its ratio is ().
A.
14.43
B.
2
C.
43.3
D.
25
查看完整题目与答案
【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
参考解析:
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