【单选题】营养性缺铁性贫血小儿,发热、咳嗽2周,诊断为金黄色葡萄球菌肺炎,肺脓肿。血RBC 3.2×10 12/L,Hb 68g/L,经先锋霉素V静点、口服硫酸亚铁及维生素C治疗2周,仍有发热,网织红细胞不上升,血象无改变。最佳治疗选择是:
【单选题】The gain of switch-mode linear amplifier is determined by () voltage, and the output voltage is a linear function of ()
A.
the output dc, the control voltage
B.
the input dc source , the control voltage
C.
the input dc source, the output voltage
D.
the input ac source, the control voltage
【单选题】营养性缺铁性贫血小儿,发热、咳嗽2周,诊断为金黄色葡萄球菌肺炎,肺脓肿。血RBC3.2×10 9 /L,Hb68g/L,经先锋霉素V静点、口服硫酸亚铁及维生素C治疗2周,仍有发热,网织红细胞不上升,血象无改变,最佳治疗选择是()
【单选题】For levels of gate-to-source voltage greater than the threshold voltage, the drain current is directly related to the ( ).
A.
square of the difference between the gate-to-source voltage and the threshold voltage
C.
square of the gate current
【单选题】Which of the listed items will stop a motor due to a reduction in voltage and restart it when the voltage is restored to normal?
A.
Low voltage protection circuit
B.
Non-renewable link fuse
D.
Low voltage release circuit
【简答题】故障三个清是指:()清、地点清和()清。
【单选题】营养性缺铁性贫血小儿,发热、咳嗽2周,诊断为金黄色葡萄球菌肺炎,肺脓肿。血RBC 3.2×10 12 /L,Hb 68g/L,经先锋霉素Ⅴ静点、口服硫酸亚铁及维生素C治疗2周,仍有发热,网织红细胞不上升,血象无改变,最佳治疗选择是()