把(甲)与(乙)区别开来

between A and B discriminate between b and b R and B discriminate mistake A for B distinguish A from B regard A as B pin B on A supply A with B cure A of B take A for B distinguish between A and B differentiate between A and B discriminate A from B make distinction between A and B Chymotrypsin A and B trisaccharides A and B Sennosides A and B both A and B A and B agglutinogens vectorcardiography electrode(between E and A) Hexosaminidase A and B deficiency