患者，男，50岁，骤发剧烈腹痛，初起时剑突下偏右呈发作性胀痛，迅速波及全腹呈持续性，并向后腰背放射，伴恶心、呕吐。查体：体温38.9℃，BP 110/80mmHg，脉搏110次/min，呼吸32次/min，心肺检查(-)，全腹膨隆，伴明显肌紧张及广泛压痛、反跳痛。B超示肝脾大，胰腺明显肿大，尤以胰头、胰体明显。实验室检查：血红蛋白96.1g/L，白细胞18.9×109/L，AST 211U/L，BUN 9.9mmol/L，AMY 1905.7U/L，CA 1.75mmol/L。
该患者的诊断应为
A．急性胰腺炎
B．消化道穿孔
C．急性胆囊炎
D．急性肠梗阻
E．急性阑尾炎
参考答案：A
Good morning, boys and girls. Today I’ll talk about going online. We know that there are too many Net bars（网吧）around us. The Internet makes our lives interesting. Many of us like going online very much because we can learn how to use the computer. We can learn English and read some newspapers and magazines to know more information around us. It can make us clever in playing computer games. Also when we send e-mails to our friends, they can get them at once. It can help us keep in touch with people from all over the world. But some students spend too much time in playing computer games and some stay in the Net bars all day and all night. It takes them too much time to chat online so they do worse in their lessons and they don’t study well any more. I think we mustn’t get online when it is time for us to study. We can do it in summer or winter holidays. I think we should get online with our teachers or parents. At the same time, if we have lots of free time, we can do some activities after school. We usually have activities from 4:50 to 5:50 in the afternoon. We can play basketball or football. We also have some interest groups in school, such as drawing, singing and dancing. We can go to the English corner on Monday afternoon. I hope we can spend more time on our subjects or on such activities that we can learn a lot from and less time on the Internet. That’s all! Thank you.
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