下列哪种情况不是溶血性黄疸的特征()
A.皮肤瘙痒
B.红细胞脆性改变
C.涂片中可见球形红细胞
D.血液中网织红细胞增加
E.凡登白间接反应阳性
参考答案:A
Do you think students should _________ to wear their own clothes at school ?
A. allow B. are allowed C. be allowed
内燃机按冷却方式可分为风冷和()两种。