三大制胜原则攻克四级阅读理解
the black boxes be painted orange or yellow? (2010年6月四级阅读理解第60题)
A. To distinguish them from the colour of the plane.
B. To caution people to handle them with care.
C. To make them easily identifiable.
D. To conform to international standards.
解析：该题属于细节题，询问飞机上的黑匣子涂成橙色或黄色的原因。考
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