目前中国有()个少数民族使用28种本民族文字。
A、22
B、24
C、26
参考答案:A
— Do you know Henry didn't win that speech contest?
— _____? I thought he would. He worked so hard on it. [ ]
A. Do I
B. Don't I
C. Did he
D. Didn't he
男孩,5岁。自幼唇、指(趾)甲床青紫,乏力,活动后气促,体格发育落后,胸骨左缘第2-3肋间可闻及Ⅲ级收缩期杂音,经超声心动图证实为先天性心脏病,法洛四联症。
此患儿突然发生昏厥、抽搐最可能并发()。
A.支气管肺炎
B.充血性心力衰竭
C.低钙惊厥
D.脑血栓,脑脓肿
E.癫痫