乙烯-醋酸乙烯共聚物的英文简写为（）
A..EVA.
B..VEA.
C..VA.E
D..A.VE
参考答案：A
一重症肌无力患者因肺部感染应用卡那霉素治疗，3d后发生危象，此时首先
A．鉴别危象的类型，给予针对性治疗B．停用卡那霉素C．保证呼吸道通畅D．积极治疗肺部感染E．肌内注射阿托品1mg
The city,________ by mountains and lakes,is so beautiful that they have decided to stay there for
another two days. [ ]
A. stood
B. connected
C. blocked
D. surrounded
