男性，23岁。左胸外伤后，摄片提示左肺压缩<30%，左侧第3肋单处骨折。其治疗方案首选（）

A.吸氧

B.胸穿排气

C.建立静脉通路

D.胸腔闭式引流

E.镇静止痛，保守疗法

根据中文提示，写出正确的单词。

Uncle John is from_____小题1:____(澳大利亚). But he can   小题2:   (说) English, Chinese and Japanese.  He     小题3:   (教)English in a school of Shanghai. Uncle John likes to  小题4:   （锻炼）every day. He thinks it’s    小题5:  （重要的）to keep healthy. He usually rides his    小题6:   （自行车）to work. He ___小题7:_____（也）likes to make dinner for his three children. He always says that delicious food makes    小题8:  (我们)happy. He keeps a    小题9:   （宠物） dog, and everyone thinks his dog is lovely and     小题10:  （聪明的）. It can sing and dance. It can walk on two legs. I want to visit Uncle John this summer vacation.