呼气性呼吸困难
A．神经官能症B．左心衰竭C．喘息型慢性支气管炎D．气胸E．喉水肿
参考答案：C
________ room is big and bright. They like it very much. [ ]
A. Tom and Sam
B. Tom's and Sam
C. Tom and Sam's
D. Tom's and Sam's
脊髓灰质炎的治疗原则有哪些？
