电磁型电流继电器和电磁型电压继电器的返回系数Kre表示正确的是() A: Iact/Ire Uact/Ure B: Iact/Ire Ure/Uact C: Ire/Iact Ure/Uact D: Ire/Iact Uact/Ure
电磁型电流继电器和电磁型电压继电器的返回系数Kre表示正确的是() A: Iact/Ire Uact/Ure B: Iact/Ire Ure/Uact C: Ire/Iact Ure/Uact D: Ire/Iact Uact/Ure
The word "retrospective" is made up of three morphemes. Which of them is a root A: retro-. B: spect. C: -ire. D: trospe
The word "retrospective" is made up of three morphemes. Which of them is a root A: retro-. B: spect. C: -ire. D: trospe
The word "retrospective" is made up of three morphemes. Which of them is a root A: retro-. B: spect. C: -ire. D: trospec.
The word "retrospective" is made up of three morphemes. Which of them is a root A: retro-. B: spect. C: -ire. D: trospec.
返回电流Ire与动作电流Iact的比值称为返回系数Kre
返回电流Ire与动作电流Iact的比值称为返回系数Kre
The most surprising feat___ of the house was a large room as big as a swimming pool. A: are B: ere C: ure D: ire
The most surprising feat___ of the house was a large room as big as a swimming pool. A: are B: ere C: ure D: ire
导致青霉素过敏反应的抗体是（） A: IgA B: IgD C: IRE D: IgG E: IgM
导致青霉素过敏反应的抗体是（） A: IgA B: IgD C: IRE D: IgG E: IgM
返回电流Ire与动作电流Iact的比值称为返回系数Kre,其范围是0.85~0.95.
返回电流Ire与动作电流Iact的比值称为返回系数Kre,其范围是0.85~0.95.
熔断器的保护应满足（） A: Irz≥4～7I2dmin B: Ire≥5～7I2dmin C: Irz≥3～7I2dmin D: Irz≥1.2～1.4I2dmin
熔断器的保护应满足（） A: Irz≥4～7I2dmin B: Ire≥5～7I2dmin C: Irz≥3～7I2dmin D: Irz≥1.2～1.4I2dmin
熔断器的保护应满足（）。 A: I2dmin/Irz≥4～7 B: I2dmin/Ire≥5～7 C: I2dnin/Irz≥3～7 D: I2dnin/Irz≥1.2～1.4
熔断器的保护应满足（）。 A: I2dmin/Irz≥4～7 B: I2dmin/Ire≥5～7 C: I2dnin/Irz≥3～7 D: I2dnin/Irz≥1.2～1.4
熔断器的保护应满足（）。 A: AI2dmin/Irz≥4～7 B: BI2dmin/Ire≥5～7 C: CI2dnin/Irz≥3～7 D: DI2dnin/Irz≥1.2～1.4
熔断器的保护应满足（）。 A: AI2dmin/Irz≥4～7 B: BI2dmin/Ire≥5～7 C: CI2dnin/Irz≥3～7 D: DI2dnin/Irz≥1.2～1.4