尿胆红素试验阳性的疾病有（）
A.肝硬化
B.梗阻性黄疸
C.胆石症
D.胰头癌
E.Rotor综合征
参考答案：A, B, C, D, E
用所给单词的适当形式填空。
1. He is one of the top ___ (chef) in the restaurant.
2. I think that paper is the most useful ___ (invent).
3. 1 wish all of you a____ (please) journey.
4. We should take an____ (act) part in all kinds of outdoor activities.
5. We learn history in school and may know about something before a few __ (century).
保护接地
