风湿性心脏炎最常受累的是
A．心包膜B．左心房内膜C．左心瓣膜D．右心瓣膜E．右心房内膜
参考答案：C
用所给词的适当形式填空
1. What are your parents (read) now?
2. Evervone (be) at home last Saturday.
3. What about____(sit) under the big tree?
4. Our English teacher____(leave) school an hour ago.
5. Look out! It's (rain). We can't go out.
26岁，女性患者，平素有背痛，乏力与低热，分娩后出现下肢瘫痪，检查胸椎9、10压痛，平脐以下痛觉减退，下肢痉挛性瘫，血沉加快，首先应考虑是
A．脊髓蛛网膜炎B．脊髓肿瘤C．硬膜外腔脓肿D．胸椎结核E．横断性脊髓炎
