问题
单项选择题
男孩6岁,反复腹痛3个月,以脐周痛为主,疼痛多在十几分钟内自然缓解。查体:全身皮肤无黄染及出血点,腹平,全腹软,无压痛,未触及包块,直肠指检(-)。血WBC8×10/L,P46%。腹部B超未发现异常征象。下列疾病中,哪一种可能性最大
A.慢性阑尾炎
B.胆道感染
C.肠痉挛症
D.阶段性肠炎
E.腹型过敏性紫癜
答案
参考答案:C
男孩6岁,反复腹痛3个月,以脐周痛为主,疼痛多在十几分钟内自然缓解。查体:全身皮肤无黄染及出血点,腹平,全腹软,无压痛,未触及包块,直肠指检(-)。血WBC8×10/L,P46%。腹部B超未发现异常征象。下列疾病中,哪一种可能性最大
A.慢性阑尾炎
B.胆道感染
C.肠痉挛症
D.阶段性肠炎
E.腹型过敏性紫癜
参考答案:C
Big schoolbags have been a big problem for students for a long time. Maybe your schoolbag is too 1 to carry, and it troubles you a lot 2 you want to find out a book to read. Now e-textbooks will 3 you. It is said that many Chinese middle schools are going to use e-textbooks. An e-textbook, in fact, is a small 4 for students. It is much 5 than a usual schoolbag and easy to carry. Though it is as small as a book, it can 6 everything for study. The students can read the text page by page on the 7 ,take notes 8 the pointer (屏写笔),or even “hand in” their 9 to their teachers by sending e-mails. All they have to do is to press a button (按开关). Some people say e-textbooks are good, but some say they may be 10 for the students’ eyes. What do you think of it?
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