肺大泡破裂患者，麻醉前应先行（）
A.肺通气功能检查
B.呼吸功能训练
C.心电图检查
D.支气管纤维镜检查
E.胸腔闭式引流
参考答案：E
How nervous we are ______ the coming high school entrance exams _____ June 15th.
A．thinking of ; on
B．to think of; on
C．thinking of ; in
D．to think of; in
根据课文，完成对话。
A: Can you _________ _________on the ice?
B: I think I can _________ up on the ice. Look! I'm _________.
A: Good! Can you _________ _________?
B: I think I _________, _________ on Danny!
A: Oops! I fall _________ again! Can you _________ _________?
B: I think I _________.
A: Very good.
