对呼吸机治疗患者首选的湿化设备是什么?
参考答案:
人工鼻
He was admitted to our school two years ago, a top school in our hometown, _____ he has been crazy about reading electronic novels, killing time.
A.after that
B.since that
C.after when
D.since when
20世纪50年代,中国政府提出的解决国与国之间问题的基本准则是
A.求同存异
B.和平共处五项原则
C.互不侵犯
D.反对霸权主义