• 2021-04-14 问题

    You may _____ us at 60 days for the amount of the invoice.

    You may _____ us at 60 days for the amount of the invoice.

  • 2021-04-14 问题

    Most of our suppliers are drawing _____ us _____ 60 days sight _____ D/A.

    Most of our suppliers are drawing _____ us _____ 60 days sight _____ D/A.

  • 2022-06-01 问题

    标准雷电冲击电压波形参数是() A: ±1.2/60us B: ±1.2/50us C: ±2.6/50us D: ±2.2/50us

    标准雷电冲击电压波形参数是() A: ±1.2/60us B: ±1.2/50us C: ±2.6/50us D: ±2.2/50us

  • 2022-05-30 问题

    图2所示电路中Uab=0,电流源两端的电压US为( )V。[img=186x120]17da5a08ccb0463.png[/img] A: 40 B: -60 C: 60 D: -40

    图2所示电路中Uab=0,电流源两端的电压US为( )V。[img=186x120]17da5a08ccb0463.png[/img] A: 40 B: -60 C: 60 D: -40

  • 2022-06-06 问题

    As agreed, we have _______ the Federal Commercial Bank at 60 days’ sight for the net amount of US$ 101,000. A: issued B: drawn on C: covered D: invoiced

    As agreed, we have _______ the Federal Commercial Bank at 60 days’ sight for the net amount of US$ 101,000. A: issued B: drawn on C: covered D: invoiced

  • 2022-06-06 问题

    Are there enough books for ____? A: three us B: us three C: all us D: the three us

    Are there enough books for ____? A: three us B: us three C: all us D: the three us

  • 2022-06-11 问题

    ______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us

    ______ agrees to your plan. A: Anyone of us B: No one of us C: None of us D: Someone of us

  • 2022-06-29 问题

    图示电路中,已知复阻抗|Z2|=60Ω,各交流电压的有效值分别为:US=100V,U1=171V,U2=240V,求复阻抗|Z1|。[img=305x158]18032b2570dd3b5.png[/img] A: 40Ω B: 20Ω C: 60Ω D: 80Ω

    图示电路中,已知复阻抗|Z2|=60Ω,各交流电压的有效值分别为:US=100V,U1=171V,U2=240V,求复阻抗|Z1|。[img=305x158]18032b2570dd3b5.png[/img] A: 40Ω B: 20Ω C: 60Ω D: 80Ω

  • 2022-06-12 问题

    Mr. Yang ______. A: teaches math us B: teaches us to math C: teaches math to us D: us teaches math

    Mr. Yang ______. A: teaches math us B: teaches us to math C: teaches math to us D: us teaches math

  • 2022-06-06 问题

    What does sleeping help us? A: It helps us stay healthy. B: It helps us improve our memory. C: It helps us reduce stress. D: It helps us lose weight.

    What does sleeping help us? A: It helps us stay healthy. B: It helps us improve our memory. C: It helps us reduce stress. D: It helps us lose weight.

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