A.2.2%~81% B.2.8%~93% C.4.65%~93.9% D.3.2%~64%
A.2.2%~81% B.2.8%~93% C.4.65%~93.9% D.3.2%~64%
A.空氣B.氧氣C.二氧化碳D.氬氣