1. Why was the black box redesigned in 1965?
A. New materials became available by that time.
B. The early models didnt provide the needed data.
C. The early models often got damaged in the crash.
D. Too much space was needed for its installation.
2. What do we know about the black boxes from Air France Flight 447?
A. They have stopped sending homing signals.
B. They were destroyed somewhere near Brazil.
C. There is an urgent need for them to be reconstructed.
D. There is still a good chance of their being recovered.
【解析】
1. 考点出处倒数第二段Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned
文中提到,早期的黑匣子经常抗不住空难的破坏(failed to withstand crashes),因此在1965年,黑匣子重新设计(redesigned),所以答案为C。
2. 考点出处最后一段Experts believe the boxes from Air France Flight 447, which crashed near Brazilon June 1,2009, are in water nearly that deep, but statistics say theyre still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one planes black boxes were never recovered.
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