男性，50岁，警官，近1年来经常出现间歇性胸痛，劳累后出现症状，疼痛向左肩、左臂放射。有近 20年吸烟史。此次发作持续时间超过4小时，伴有恶心、呕吐，并出现心律失常。心电图显示T波倒置。心肌的病变是

A．心肌梗死

B．心肌蜡样变性

C．心肌细胞增生

D．心肌肥大

E．心肌萎缩

Reading between the lines, I should say the scientists are disappointed for the outcome of the research project, though they will not openly admit it.