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单选题
Which of the following is the recommended placement of the rear surround speakers in a 5.1 surround installation？（）
A
Directly to the left and right and slightly in front of the listener
B
Directly to the left and right and slightly behind the listener
C
Above and behind the listener
D
Directly behind the listener
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单选题Which of the following is the recommended placement of the rear surround speakers in a 5.1 surround installation？（）A
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