正常血浆阳离子中占总量最多的是()
A.K+
B.Na+
C.Cl-
D.Mg2+
E.Ca 2+
参考答案:B
It doesn’t matter _____you pay by cash or credit card in this store.
A.whether
B.how
C.what
D.why
如果患者胸痛超过24小时,如疑为急性心肌梗死,可选择下列哪项进行临床诊断( )
A.cTn
B.LD
C.HBD
D.CK
E.AST