下列哪项有助于急、慢性肾衰竭的鉴别
A．蛋白尿程度
B．血尿程度
C．高血压的程度
D．肾脏大小
E．酸中毒程度
参考答案：D
—When are you going to get your ears ________?
—I am going to have Ms Li ________ my ears this weekend.
A．pierced; pierce
B．pierced; pierced
C．piercing; to pierce
D．to pierce; pierced
示范法又可分为哪几种形式?
