易造成营养缺乏的原因有（）.
A.食物供给不足
B.食物中营养素缺乏
C.营养素吸收利用障碍
D.以上三者都对
参考答案：D
-Look, what an old palace! It looks so great!
-Yeah. It _________ nearly 800 years ago.[ ]
A. was building
B. was built
C. has built
D. is built
急性肾炎患儿，肢体浮肿，咳嗽气急，心悸胸闷，口唇青紫，脉细无力。治疗应首选
A．速尿加己椒苈黄丸B．速尿加龙胆泻肝汤C．西地兰加己椒苈黄丸D．西地兰加龙胆泻肝汤E．二氯嗪加己椒苈黄丸
