题型：填空题 患者女性，50岁，左下第一双尖牙及左下第一牙残根，既往病史中曾有风湿性心脏病史13年，现二尖瓣狭窄，心功能Ⅰ级对此患者施行牙拔除术时须慎重，否则容易引起的严重并发症是（）A.颊间隙感染B.颌下间隙感染C.干槽症D.败血症E.亚急性细菌性心内膜炎 查看答案
题型：填空题 我是小小翻译官。选择正确的译文。1. 我能要五本书吗？[ ]A. What's this? B. May I have five books, please? C. How many books?2. 多少张桌子？[ ]A. How many desks? B. Where is the desks? C. May I have desks?3. 见到你很高兴。[ ]A. How are you? B. I'm fine, thanks. C. Nice to meet you.4. 一会儿见。[ ]A. See you later! B. Bye! C. How many?