双相抑郁的临床特点包括()
A.一般在25岁以前出现
B.与遗传无关
C.用抗抑郁治疗过程中出现躁狂症
D.发作往往是突然起病
E.确诊前常被误诊为抑郁症
参考答案:A, C, D, E
贫血合并肺炎的患儿,每次输血量为()
A.10ml/kg
B.20ml/kg
C.15ml/kg
D.<5ml/kg
E.5~7ml/kg
John and David are in _____ school, but they are in _____ classes. [ ]
A. the same; the different
B. the different; the same
C. the same; different
D. different; the same