血液非蛋白氮中含量最多的物质是
A．肌酐B．肌酸C．蛋白质D．尿酸E．尿素
参考答案：E
Every boy and every girl ___ to attend the English evening party to be held on Saturday.
A．wish
B．enjoys
C．wishes
D．have wished[
静脉曲张性外痔最常合并的疾病是：（）
A.直肠息肉
B.肛裂
C.肛 * * 肥大
D.内痔
E.血栓外痔
