下列哪项是细胞表面粘附分子的测定方法()
A.ELISA
B.RIA
C.流式细胞仪
D.PCR
E.RT-PCR
参考答案:C
The Americans had to put off _______ the space shuttle. [ ]
A. launch
B. launching
C. to launch
患儿,1岁,能抬头,不能独坐及站立,牙齿萌出4颗,头颅呈方形,囟门宽大,发稀而黄,目无神采,反应迟钝,夜卧不安,易倦懒动,肢体无力,睡眠不实,面色不华,形体瘦弱,舌淡苔少,指纹淡。治疗应首选( )
A.加味六味地黄丸
B.调元散
C.虎潜丸
D.调元散合二陈汤
E.通窍活血汤合二陈汤