There are so many people in the shop. You must _____________ your things. [ ]

A. look at

B. look after

C. put away

D. put on

男，45岁，反复出现胸骨后烧灼样痛，多在餐后出现,补充追问病史，哪项对明确诊断最有意义

A．劳累是否加重疼痛

B．紧张是否加重疼痛

C．咳嗽是否加重疼痛

D．服用硝酸甘油可否减轻疼痛

E．服用抗酸剂可否减轻疼痛