病儿,15岁,主诉乏力,尿酱油色,贫血,尿联苯胺试验阳性,下列何项资料最不重要()
A.用药史
B.外周血片检查
C.尿沉渣检查
D.骨髓象检查
E.尿含铁血黄素试验
参考答案:D
It was only when I entered high school _____ the importance of English.[ ]
A. did I realize
B. realized I
C. that did I realize
D. that I realized
猪外伤性跛行病发原因是什么?