支气管哮喘发作禁用（）
A.氟美松
B.氨茶碱
C.沙丁胺醇
D.肾上腺素
E.吗啡
参考答案：E
— I’m really ______ before the exam.
— Take it easy. Surely you are the best.
A．cool
B．serious
C．nervous
D．patient
