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【单选题】
使燃气涡轮喷气发动机循环功达到最大时的增压比称为（）增压比.
A.
最有效
B.
最佳
C.
最经济
D.
最适宜
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