题目内容
（请给出正确答案）
提问人：网友l******8
发布时间：2022年3月20日 11:48
[单项选择题]
Paragraph 1 You never see him, but they’re with you every time you fly. They record where y...What do we know about the black boxes from Air France Flight 447（）
A．There is still a good chance of their being recovered.
B．There is an urgent need for them to be reconstructed.
C．They have stopped sending homing signals.
D．They were destroyed somewhere near Brazil.
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