急性肾盂肾炎最具特征性的尿异常是（）
A.血尿
B.蛋白尿
C.脓尿
D.乳糜尿
E.脂质尿
参考答案：C
Drinking water, having a healthy diet and taking exercise are all positive ways to ________ you when you are working on a tight schedule.
A．relieve
B．refresh
C．liberate
D．comfort
