--_____ of the population of the city _____workers?

--About 60 percent.

A．What; is

B．What; are

C．How much; is

D．How much; are

一患者双下肢关节游走性疼痛，肿胀，时有寒热，舌苔黄腻，脉浮；治疗除对症取穴外，整体取穴还应配

A．肾俞、关元

B．膈俞、气海

C．商丘、足三里

D．大椎、曲池

E．膝眼、太溪