... cause for rejection 报废原因,拒收原因 cause of deficiency 缺陷原因 cause of failure 失效原因 ...
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A: Iodine deficiency is the main cause of brain damage in childhood.
答:碘缺乏症是儿童期脑损伤的主要原因。
(Your body normally manufactures Vitamin D with the help of sunlight.) Prolonged deficiency can cause bone and muscle weakness, but two months probably isn't enough to do long-term damage.
尽管医疗队一直在给工人们输送膳食补充剂,他们还是很可能缺乏维生素D(人体一般通过阳光制造维生素D),时间一长可能导致骨头和肌肉的衰弱,但是两个月的时间似乎不足以造成长期损伤。
“The cause of dementia is not vitamin D deficiency, ” said David Llewellyn, a research associate at Cambridge University and the study’s lead author.
这项研究报告的主要作者,剑桥大学的研究助理大卫卢埃林说:“老年痴呆症的原因并不是维生素D缺乏。
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