对于一个绕组有分接开关的多绕组变压器,可只测量带分接开关绕组对一个绕组所有分接头的变压比,而对第三绕组只测()。
参考答案:额定变压比
The hunter insisted that he _____ a tiger and that a searching team ______ to hunt for it. [ ]
A. has seen; be set up
B. had seen; be set up
C. saw; would be set up
D. should see; should be set up
一定条件下,能使二氧化碳还原的物质是( )
A.氧气
B.盐酸
C.焦炭
D.一氧化碳