Mr Green him English five years ago. [ ]
A. teach
B. taught
C. teaches
答案：B
《灵枢。经脉》中“循咽喉，夹舌本”的经脉是
A．手厥阴心包经
B．足太阴脾经
C．足厥阴肝经
D．足少阴肾经
E．足阳明胃经
如何降低锅炉降低排烟热损失？
