免疫学

［1］You are quantitating complement factor 3 (C3) using the kinetic (Fahey) modification of the radial immunodiffusion test．In drawing the standard curve, what values obtained for the antigen standards would you plot versus the concentrations of the standards？ What type of graph paper would you use to obtain the proper quantitative relationship for determinations of the unknowns？

　A．D^*1, linear graph paper

　B．D, semi-log graph paper

　C．D², linear graph paper

　D．D², semi-log graph paper