提示急性肾小球肾炎预后不良的指标是
A.持续低补体血症B.血沉15mm/小时C.尿常规检查RBC2O~3个/HPD.扁桃体肿大E.抗“O”升高
参考答案:A
某同学将一个阻值为40 Ω的电阻R1与电阻R2串联后,接在电压为6 V 的电源两端,测的电路中的电流为0.1 A ,则电阻R1两端的电压为_____ ,电阻R2的阻值为 _____.
Nanjing, ________ old capital of the six dynasties, is becoming ________ more beautiful city for the coming 2014 Youth Olympic Games.
A.a, a
B.the, the
C.the, a
D.an, the