Uner good treatment, many patients are beginning to _______ and will soon recover．

A．pick up

B．pick out

C．turn up

D．show up

β-内酰胺类药物的含量测定方法有

A．碘量法

B．汞量法

C．酸碱滴定法

D．高效液相色谱法

E．紫外分光光度法(铜盐法、硫醇汞盐法)