男，50岁，患胃溃疡已10年，近3个月来，上腹痛变为无规律，胃纳

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问题单项选择题

男，50岁，患胃溃疡已10年，近3个月来，上腹痛变为无规律，胃纳减退，X线钡餐检查，胃窦部可见2.5cm×3.0cm龛影，边缘不齐，粪便隐血三次阳性，首先应考虑的疾病是()

A．胃溃疡出血

B．胃溃疡合并胃息肉

C．胃溃疡合并胃粘膜脱垂

D．胃溃疡合并幽门梗阻

E．胃溃疡恶变

答案

参考答案：E

补全对话，情景问答

情景交际：用适当的语句完成对话。

A: Hi, Jason! Could you practice basketball with me this afternoon?

B: __1__. I have to do the laundry this afternoon.

A: __2__?

B: No, not really. It's very boring, but my parents are too busy to do it.

A: I see. I hate doing it, too. But I like other chores.

B: __3__?

A: I like taking out the trash and making the bed. I think they're relaxing and very easy to do.

B: __4__?

A: Yes, very much. I think cooking is interesting.

B: __5__. I often help my mum cook.

多项选择题

连杆螺栓用优质合金钢制造如：（）等经调质后滚压螺纹，表面进行防锈处理。

A、35CrMo

B、42CrMo

C、40Cr

D、35Mn2

E、50Mn