胶原敷料不具备的优点是()
A.蛋白质来源丰富
B.生物相容性好
C.良好的吸水性
D.具有很强的抗感染作用
E.可根据需要调整敷料类型
参考答案:D
下列关于RC电路或RL电路说法正确的是().
A.RL并联电路电阻和电感两端电流相等
B.RL串联电路电阻和电感两端电压相等
C.RC并联电路通过电阻和电容电流相等
D.RC串联电路通过电阻和电容的电流相等
He said that doing parttime jobs did no good to students, but few ________ his view.[ ]
A. agreed
B. permitted
C. shared
D. nodded