A.≤85dB(A) B.≤90dB(A) C.≤95dB(A) D.≤100dB(A)
A.<85dB(A) B.<95dB(A) C.<100dB(A) D.<90dB(A)
A.18℃ -22℃ B.18℃ -24℃ C.20℃-25℃ D.16℃-18℃