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【单选题】

A transformer is the most efficient at ().

A.
B.
C.
D.
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【判断题】The tour guide service covers the whole process of the tourist reception service. The success or failure of tourism activities depends largely on the service quality of tour guides.
A.
正确
B.
错误
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【单选题】What put an end to the rule of the Qing Government over Yunnan?
A.
Kunming Uprising
B.
Tengyue Uprising
C.
Lin'an Uprising
D.
All above
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【单选题】A three-phase power transformer is operated with resistive inductive load. Under the same load current, the higher is, then ().
A.
bigger , the more efficient;
B.
Bigger, less efficient;
C.
Smaller,less efficient;
D.
The smaller, the more efficient.
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【单选题】After the Opium War, which country got the right to build Kunming-Vietnam railway in Yunnan?
A.
The Great Britain
B.
France
C.
Vietnam
D.
Thailand
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【判断题】喉部扫描时,为更好地显示声带、梨状窝尖端、咽后壁与杓会厌襞形态及病变,可嘱受检者连续发字母“E”音,使声带内收、梨状窝扩张。( )
A.
正确
B.
错误
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【判断题】It's better to finish your speech about 5 minutes before arriving at the destination.
A.
正确
B.
错误
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【单选题】Why did Yunnan province initiate the “Republic-Defending Movement” in 1915?
A.
To resisit the invasion of foreign countries
B.
To fight against the monarchy
C.
To establish a new system
D.
To suppress uprisings
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【单选题】Transformer winding and iron core will heat in operation, the main factor of heating is ()
A.
electricity
B.
voltage
C.
Iron and copper loss
D.
inductance
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【多选题】下列有关颈部CT检查技术对颈部血管性病变的叙述,正确的是()
A.
可显示DSA不能检出的管壁斑块
B.
在动脉粥样硬化狭窄程度的判断上较常规MR更可靠
C.
可显示颈部富血供病变的供血动脉
D.
可了解颈部肿块与周围血管的关系
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【单选题】What role did Yunnan play during the War of Resistance Against Japan before 1942?
A.
The battleground
B.
The colony
C.
The rear guard
D.
The frontline
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