与载体结合后可获得免疫原性的为
A．小分子化学药物
B．佐剂
C．类毒素
D．抗毒素
E．LPS
参考答案：A
Your MP4 is quite cheap. Where did you buy ________? I want to buy ________, too.
A．one; one
B．it; it
C．it; one
D．one; it
上睑下垂见于哪些疾病？
