循行“人下齿中”的经脉是（）
A.小肠经
B.大肠经
C.胃经
D.脾经
E.肝经
参考答案：B
—Bruce, I really appreciate your handwriting.
—________.[ ]
A. I practise every day
B. Thank you very much
C. No, I don't think so
D. Well, it's not good enough
煤粉细度对煤粉气流的燃烧有什么影响？
