队列研究中,队列的成员必须
A.有相同的暴露史B.有相同性别C.同年出生D.经历过同样的时期E.居住在同一地区
参考答案:A
I like _ but my brother likes .[ ]
A. play football; play piano
B. playing the football; playing the piano
C. playing football; playing the piano
D. play the football; play piano
心搏骤停时,应首选的急救药是()
A.肾上腺素
B.多巴胺
C.麻黄碱
D.去甲肾上腺素
E.地高辛