问题
单项选择题
因溃疡行胃部分切除术后18个月，3个月前出现上中腹痛，比术前更剧烈，并偶排黑便，最可能的诊断是（）
A.残胃癌
B.碱性反流性胃炎
C.吻合口溃疡
D.残胃溃疡
E.残留十二指肠溃疡
答案
参考答案：C
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因溃疡行胃部分切除术后18个月，3个月前出现上中腹痛，比术前更剧烈，并偶排黑便，最可能的诊断是（）
A.残胃癌
B.碱性反流性胃炎
C.吻合口溃疡
D.残胃溃疡
E.残留十二指肠溃疡
参考答案：C
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| I Left My Glasses at Home Half a year ago Mrs Black 1 into the river while she was doing some washing there. 2 some young men saved her. She had a high fever that evening and her son bought some 3 for her. She didn't take it after she felt 4 better. From then on she could hardly hear 5 . And people had to talk her loudly(大声地) and this often 6 her a little trouble. So one day her daughter said to her loudly,"You'd better 7 to see a doctor, mother !" Mrs Black thought it was right and agreed 8 her. Her daughter drove a car and took her to a clinic(诊所)and then hurried to work. Mrs Black went in and found nobody there and 9 to knit(织) a sweater. 10 a nurse came in and said, "We close this afternoon, Granny. Come here tomorrow." The old woman nodded(点头), but she didn't leave and went on 11 . The nurse said it again 12 , but Mrs Black said 13 and was still sitting in the waiting-room. Now the nurse understood what it 14 . She brought out a piece of paper and wrote on it. "We close this afternoon. "Then she handed it to the old woman. Mrs Black looked at it carefully for a long time and then returned it to the nurse. " I'm sorry, madam, ''said the old woman, "I 15 my glasses at home ! " | ||||
|
，当换成光栅常数
的光栅时，第一级衍射条纹对应的衍射角为2
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