红细胞比容减少可能的病因是() ["呕吐","腹泻","大量流汗","大面积烧伤","缺铁性贫血"]
我国学生近视发生的特点()。 ["近视随年龄、学级的增加而增加","少数民族高于汉族","城市高于农村","女生高于男生","逐年上升"]
阴盛则阳病所体现的阴阳关系是() ["A.阴阳交感","B.阴阳互根互用","C.阴阳对立制约","D.阴阳消长","E.阴阳转化"]
少年儿童健康监测内容主要有()。 ["生长发育状况","疾病发生情况","因病缺课情况","疾病发生原因","影响生长发育的因素"]
引起红细胞和血红蛋白绝对性增多的因素是() ["呕吐","腹泻","慢性肺炎","大量使用利尿药","精神兴奋"]
安宫牛黄丸的功用是()至宝丹的功用是()