With more forests being destroyed, huge quantities of good earth ____ each year. [ ]

A. is washing away

B. is being washed away

C. are washing away

D. are being washed away

患者，男，50岁。反复浮肿，尿血3年，经常感冒。症见面色无华，少气乏力，午后低热，口干咽燥，舌红少苔，脉细。检查：血压140/95mmHg，尿蛋白(++)、定量3g/24h，内生肌酐清除率48%，血尿素氮10mmol/L。除对症治疗外，还应加

A．参芪地黄汤

B．六味地黄汤

C．右归丸

D．左归饮

E．大补元煎