为区别妊娠高血压综合征与慢性肾炎,最有价值的辅助检查是:
A.血肌酸
B.血肌酐
C.血尿酸
D.血红蛋白
E.血尿素氮
参考答案:C
Reagan was elected ___ of the United States in 1981.
A.a president
B.president
C.the president
D.as president
右冠状动脉主要供给______
A.右心室
B.室间隔前上2/3
C.室间隔后下1/3
D.可能供给左心室后壁
E.左心室前壁