在急性乙型肝炎患者病程中下列哪项是最早出现的()
A．抗-HBc
B．HbeAg
C．HBsAg
D．抗-HBs
E．DNA多聚酶
参考答案：C
--Would you please explain to me about the difference between the two phenomenon?
--I’m sorry, but that’s just _____ I’m puzzled about.
A．why
B．what
C．which
D．where
睑内翻的病因不包括
A．结膜烧伤B．小眼球C．面神经麻痹D．眼球萎缩E．沙眼
