A.阻尼系數(shù)D>0,整步功率系數(shù)Seq>0 B.阻尼系數(shù)D<0,整步功率系數(shù)Seq>0 C.阻尼系數(shù)D>0,整步功率系數(shù)Seq<0 D.阻尼系數(shù)D<0,整步功率系數(shù)Seq<0
A.社會(huì)主義B.農(nóng)業(yè)社會(huì)C.科技社會(huì)D.經(jīng)濟(jì)社會(huì)
A.行為習(xí)慣B.學(xué)習(xí)習(xí)慣C.情感和態(tài)度D.個(gè)性心理品質(zhì)