A certain prosthodontist specializes in implanting gold and silver teeth in his patients’ mouths. He charges $650 for a gold tooth and $325 for a silver tooth. If his total fees for implanting gold and silver teeth last week were $15,925 in total, and he implanted five more gold teeth than silver teeth, how many teeth in total did he implant over the week ？（）

A. 31

B. 32

C. 33

D. 34

E. 35

男 50岁，高血压病多年，近日活动后出现呼吸困难伴左胸痛，咳嗽频繁。咳出为粉红色泡沫样血痰，可能的疾病为

A．大叶性肺炎

B．急性左心衰

C．右心衰竭

D．支气管扩张

E．自发性气胸