Pleasedonot cover your mouth and nose when sneezing and coughing with ( ) A: a medical mask B: tissue C: flexed elbow D: palm of your hand

"When the knee is flexed, below patella, in the depression lateral to patella ligament", the location of the point is. A: tianshu ( ST 25 ) B: liangqiu ( ST 34 ) C: Dubi ( ST 35 ) D: zusanli ( ST 36 ) E: shangjuxu ( ST 37 )