钩虫病的血象特点有()
A.不同程度贫血
B.低色素性小细胞性贫血
C.网织红细胞数正常或轻度增高
D.嗜酸性粒细胞略增多
E.血清铁浓度显著降低
参考答案:A, B, C, D, E
It is important to have your eyes examined regularly to check for any sign of eye disease that may not have any ________.
A.shadow
B.similarity
C.sample
D.symptom
翻拍必须使用微距镜头,是因为翻拍原件一般较小()