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【单选题】
飞行高度3万英尺，增压自动方式，最大压差为().
A.
7.5PSI
B.
7.8PSI
C.
7.9PSI
D.
8.65PSI
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Passage Three For all his vaunted(夸耀) talents, Federal Reserve Chairman Alan Greenspan has never had much of a reputation as an economic forecaster. In fact, he shies away from making the precise-to-t...
A.
his successful predictions of economy
B.
his timely handling of interest rates
C.
his unusual economic policies
D.
his unique sense of dangers