A-A+
According to the passage an active noise-canc
问题详情
According to the passage, an active noise-cancellation system______.
A．contains noise rather than negates it
B．eliminates noise rather than muffles it
C．deflects noise rather than baffles it
D．holds noise back rather than stifles it此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：本题的四个选项中，只有B项为正确答案。这可从文中第二段的最后一句“…which doesn’t just contain，deflect，or mask the noise，but annihilates it electronically”推知。
