试述婴幼儿常见营养性缺乏病有哪些?
参考答案:
(1)营养不良;
(2)儿童肥胖症;
(3)维生素A缺乏症;
(4)钙缺乏症;
(5)锌缺乏症;
(6)缺铁性贫血。
.
Every possible means _________.However, nothing can ______him dying of cancer.
A.has tried; stop
B.have tried; keep
C.has been tried; prevent
D.have been tried; prevent
()坑是秦始皇陵的陪葬坑。
A.兵马俑
B.铜车马
C.石铠甲
D.铁车马