COPD患者呼吸困难的特点有（）
A.呼气性呼吸困难
B.呼气延长且费力
C.呼气喘鸣音
D.吸气“三凹征”
E.深大呼吸
参考答案：A, B, C
增生型肠结核常见（）。
A.腹泻，便呈糊样
B.便秘
C.便血极常见
D.钡灌肠透视呈铅管征
E.易并发中毒性巨结肠
用所给单词的适当形式填空。
1. This book is _____ (cheap) than that one.
2. He is _____ (friend) to me.
3. How many _____(sheep) are there on the hill?
4. Tom writes _____ (careful).
5. Please keep the door _____ (open).
6. This is _____ (she) book.
7. That is the _____ (good) music in the world.
8. Your coat is as _____ (new) as hers.
9. He is the best _____ (perform).
10. There are some _____ (child) in the park.
