A.80%~60% B.60%~40% C.45%~30% D.25%~30%
A.15ug/L B.20ug/L C.25ug/L D.50ug/L
A.升高 B.降低 C.不變
A.不變 B.降低 C.升高
A.4℃/min B.3℃/min C.2℃/min D.1℃/min