抗血清(antiserum)
参考答案:
经人工接种抗原或疾病后含有大量特异性抗体的动物或人血清,称抗血清,又称免疫血清。
To pay to see that movie seems foolish ________ you can see it on television for free.
A.before
B.though
C.when
D.once
微小贷款目标客户包括哪些()
A.有了扩展积累;
B.有了简单积累;
C.为了生存;
D.以上皆是