急性心肌梗死发生后持续升高时间最长的酶是（）
A.CK
B.LD
C.AST
D.ALT
E.ALP
参考答案：B
—You didn’t go to the party last night, did you?
—I do wish I _________ there, but I had to do my homework.
A．was
B．had been
C．went
D．have been
有关左心室的叙述，错误的是
A．左心室壁最宽B．有出、入2个口C．入口为左房室口D．入口附有3个半月瓣E．出口为主动脉口
