短文改错(10分)

I’m glad to write to you. It is near a month since you had left our hospital. I’m still worried about you. How are you get along these days? I think you may be much better now, but I’d better have a good rest and take good care of yourselves since you are sixty-year-old man. I still remember those days which you helped me to my English. With your help, I make good progress. But to my regret, my English remains very poor through I have made good use of my time. Can you give me some advice on it?

男性，52岁，晚上饱餐饮酒后突然出现胸骨后压榨性疼痛，持续半小时不缓解，伴出汗、恶心、呕吐来诊。首选检查是

A．腹部B超

B．胸部X线

C．化验血常规

D．心电图

E．尿淀粉酶检查