题型:判断题 +2.00DC×90°与-2.00DC×180°联合后得到()。A.+2.00DS/-2.00DC×90°B.+2.00DS/-4.00DC×180°C.+2.00DS/-4.00DC×90°D.-2.00DS/+2.00DC×90°E.-2.00DS/+4.00DC×180° 查看答案