A、±0.3%和0.25% B、±0.3%和0.15% C、±0.5%和0.15% D、±0.3%和0.3%
A、10%~15%,±0.5Hz B、+10%~-10%,±1Hz C、+10%~-15%,±1Hz D、+5%~-15%,±2Hz
A、2.5mA B、3mA C、3.5mA D、4.5mA