问题
单项选择题 A1/A2型题
下列引起上消化道出血的疾病中，最为常见的是（）
A.食管胃底静脉曲张破裂
B.急性胃炎
C.消化性溃疡
D.胃癌
E.食管癌
答案
参考答案：C
解析：引起上消化道出血的病因，以消化性溃疡出血占首位，其次为门脉高压引起的食管静脉曲张破裂出血，再次为急性胃黏膜病变、胃癌等出血。
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下列引起上消化道出血的疾病中，最为常见的是（）
A.食管胃底静脉曲张破裂
B.急性胃炎
C.消化性溃疡
D.胃癌
E.食管癌
参考答案：C
解析：引起上消化道出血的病因，以消化性溃疡出血占首位，其次为门脉高压引起的食管静脉曲张破裂出血，再次为急性胃黏膜病变、胃癌等出血。
| 根据对话内容，选择恰当的句子补全下列对话。 | |
| (H for Henry; J for Janet) H: Hi, Janet, Would you like to help save the environment? J: I don't know. 1______ H: Well, first, you can start by turning off the lights. J: Yes. That's easy. Sometimes I turn on the lights without thinking. 2______ H: Second, you can ride a bicycle. 3______ J: That will save money, too. What else? H: Third, try to recycle paper. J: Mm. We get a lot of paper at home. Good idea. H: The fourth idea is turning off the shower when you're not using it. J: You mean, when I have shampoo (洗发剂) in my hair? H: Yes. 4______. Every minute helps. And fifth, take a bag when you go shopping. Don't use plastic bags (塑料袋). J: OK. 5______. I'll tell them.
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