以下因素中,对抗原抗体反应几乎没有影响的是()。
A.温度
B.pH值
C.电解质
D.大气压
E.抗原抗体的比例
参考答案:D
The key word in the sentence has been ______, so it doesn't make any sense to us.[ ]
A. picked up
B. left out
C. held up
D. made out