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【单选题】
Three-phase transformer winding connection form is star connection (Y connection), () and zigzag connection (Z connection).
A.
Series connection
B.
Parallel connection
C.
Triangular connection(D connection)
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【多选题】Which ones can prove that Yunnan was the "lifeline" for the War of Resistence Against Japan?
A.
Sino-Burma Road
B.
Stilwell Road
C.
Hump Airlift
D.
Five-chi Road
【单选题】Single-phase transformer determination of the original and vice polarity, if the first end is the same end, there is ().
A.
;
;B.
;
;C.
。
。【判断题】Ansai Waist Drum can be divided into “literature” and “military” performance styles.
A.
正确
B.
错误
【单选题】Which word is the synonym of "limestone" ?
A.
wonder
B.
geologist
C.
geology
D.
Karst
【单选题】Three-phase transformer connection group is Y, D5, where "5" represents ().
A.
lagging
lagging
B.
lagging
lagging
C.
leading
leading
D.
leading
leading
【单选题】How big is the Stone Forest region?
A.
13 square kilometers
B.
78 square kilometers
C.
13 square kilometers
D.
350 square kilometers