下列属于阴离子型表面活性剂的是
A．泊洛沙姆
B．苯扎氯铵
C．十六烷基硫酸钠
D．蔗糖脂肪酸酯
E．司盘65
参考答案：C
23. You were late again this morning! You ______ have been here earlier. We were about to start without you.
A．should
B．can
C．must
D．Will
胰岛素与受体结合后细胞内的特征性变化是（）
A.热休克蛋白自激素结合区水解
B.IP3、DAG浓度增高
C.cAMP减少
D.cAMP增加
E.受体β亚单位上酪氨酸磷酸化
