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【单选题】
How does the Lion Hall get the name?
A.
A lion sculpture is here.
B.
A stalagmite here looks like a lion.
C.
Lions used to live here.
D.
The entire hall looks like a lion.
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【判断题】In Waist-twining 180-degree-turn Beating, the hand motions of beat 5 to 8 are the same as those of beat 1 to 4.
A.
正确
B.
错误
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【单选题】The properties of synthetic fundamental magneto motive force produced by three-phase AC winding are ()
A.
The magnetomotive force is a sine wave along the circumference of the air gap.
B.
The amplitude of the magnetomotive force sine wave is constant;
C.
The magnetomotive force sine wave rotates at a synchronous speed
D.
All of the above.
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【判断题】Once an artificial variable becomes a non-basic variable in the iteration, the variable and the number of the corresponding column can be deleted from the simplex table without affecting the calculati...
A.
正确
B.
错误
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【判断题】If there is no leaving basic variable at some iteration, then the problem has no feasible solution. ( ).
A.
正确
B.
错误
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【单选题】The generator generates electromotive force through rotation. It is a device that can continuously provide current, so it is called ().
A.
The power supply
B.
Electromotive force
C.
Voltage source
D.
Voltage
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【单选题】What makes the Lion Hall a natural music hall?
A.
honeycomb caverns in the ceiling
B.
the roaring of lions
C.
the rushing rivers
D.
the heavy wind
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【多选题】下列有关先心病CTA检查技术的叙述,正确的是()
A.
选择非离子型对比剂浓度为300mg/ml,可避免明显硬化束伪影
B.
儿童监测层面在四心腔层面
C.
儿童多采用手动触发扫描
D.
成人多取CT值达100Hu阈值时,自动触发扫描
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【判断题】In a particular iteration of the simplex method, if there is a tie for which variable should be the leaving basic variable, then the next BF solution must have at least one basic variable equal to zer...
A.
正确
B.
错误
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【单选题】What kind of fish live in the karst caves of Jiuxiang Scenic Region?
A.
carp
B.
blindfish
C.
catfish
D.
goldfish
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【单选题】The synchronous speed of the generator and the magnetic pole logarithm of the generator are ().
A.
Direct proportionality
B.
Inverse proportional relation
C.
Out of proportion
D.
The same
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