【名词&注释】
活血祛瘀(activating blood removing stasis)、清热解毒(heat-clearing and detoxifying)、舌下腺(sublingual gland)、唾液腺(salivary gland)、下颌下腺管(submandibular duct)
[单选题]某患者的尿中肌酐浓度为196mg/ml,血浆肌酐浓度为1.4mg/ml,尿量为1ml/min,其肌酐清除率为
A. 75ml/min
B. 98ml/min
C. 125ml/min
D. 140ml/min
E. 175ml/min