通常用于培养结核分枝杆菌的培养基是()
A．改良罗-琴培养基
B．卡-布培养基
C．沙氏培养基
D．血平板
E．亚碲酸钾培养基
参考答案：A
He doubted, as did his family, ______________you were telling the truth.
A．what
B．that
C．whether
D．when
双扩平板法出现多条沉淀线的原因是（）
A.抗原抗体过剩
B.抗原抗体相等
C.抗原抗体缺乏
D.抗原抗体不纯
E.抗原抗体比例不当
