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举一反三
【单选题】关于异步电动机转差率说法正确的是( )
A.
任何情况下转差率都不为零
B.
临界转差率和外加电压有关
C.
正常情况下临界转差率小于额定转差率
D.
定转差率一般为0.2～0.6
【单选题】p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520Helvetica%25257D%25250Aspan.s1%...
A.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D s >1
B.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D 0s
C.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D s
D.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D -1s