C
A
70 dB
C
A
70 dB
C
A
70 dB
C
A
70 dB
C
A
C
A
70 dB
C
A
70 dB
D
B
70 dB
C
A
C
A
C
A
70 dB
C
A
70 dB
C
A
E
B
C
B
70 dB
D
C
68 dB
C
A
70 dB
C
A
70 dB
C
B
D
D
71 dB
E
E