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【单选题】
三相对称电源绕组相电压为220V,若有一三相对称负载额定相电压为380V,电源和负载应( )连接。
A.
Δ-Y
B.
Y-Δ
C.
Δ-Δ
D.
Y- Y
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【多选题】下列哪款属于 Jaguar Land Rover 采用 D8 平台设计的车型?
A.
Range Rover Velar
B.
Range Rover (L405)
C.
Range Rover Evoque
D.
Discovery Sport (L551)
【单选题】不同组分进行色谱分离的条件是
A.
硅胶作固定相
B.
极性溶剂作流动相
C.
具有不同的分配系数
D.
具有不同的容量因子
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A.
The Silver Age
B.
The Bronze Age
C.
The Age of Heroes
D.
The Iron Age
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【单选题】In which age did Trojan War take place?
A.
the Silver Age
B.
the Bronze Age
C.
Age of Heroes
D.
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C.
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D.
Discovery Sport (L551)
【单选题】不同组分进行色谱分离的条件是
A.
硅胶做固定相
B.
极性溶剂做流动相
C.
具有不同的分配系数
D.
具有不同的熔点
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A.
the establishment of a central bank
B.
the adoption of iron
C.
war
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the adoption of fiat currency
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【单选题】- I'm sorry. I ____________you _______ to me.
A.
don’t know; are speaking
B.
don't know; were speaking
C.
didn't know; were speaking
D.
didn't know; are speaking
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