单项选择题




In 1977，federal budget outlays for the United States totaled approximately how many billion dollars（）

A. 200
B. 300
C. 400
D. 500
E. 600

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单项选择题
Approximately what was the total amount of contributions to College R from the1978—1979 school year through the 1980—1981 school year，inclusive（）

A. $967，000
B. $1，000，000
C. $9，000，000
D. $9，667，000
E. $10，000，000
单项选择题
In 1969 what was the ratio of dollars of domestic operating revenues to miles flown（）

A.A
B.B
C.C
D.D
E.E
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