治疗夏季热上盛下虚的首选方剂是
A.六味地黄汤B.竹叶石膏汤C.金匮肾气丸D.温下清上汤E.白虎汤合生脉散
参考答案:D
沉淀反应中,抗原与抗体的结合价取决于抗原的分子量,一般说来,抗原的分子量与结合价的关系是()
A.抗原分子量越大,结合价越小
B.抗原分子量越大,结合价越大
C.两者没有关系
D.两者呈函数关系
E.IgM型抗体结合价为二价
—Is that your eraser?
—______. It's his eraser. [ ]
A. Yes, it is
B. No, it isn't
C. Yes, it isn't
D. No, it is