单项选择题

In 1984 the population of pintails was approximately what fraction of the mallard population（）

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

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单项选择题

For the year shown，other than 1987，in which the percent return on shareholders’equity for Manufacturer X was most nearly equal to that for 1987，what was the percent return for all United States manufacturers（）

A.15%
B.14%
C.20%
D.17%
E.22%

单项选择题

UNEMPLOYMENT DATOR THE ELEVEN STATES WTTH THE LARGEST POPULATIONS IN 1989 State Unemployment KateMay(as a percent ofstate work force. Unemployment RateJune(as apercent ofstate work force Number of UnenployedJune(in thousands) Califomia 5. 5 5.6 797 New York 5. 3 5.0 439 Tesas 5.9 6.1 502 Illinosis 5.7 5. 5 325 Pennsylvania 4.6 4.0 239 Rorida 6.4 6.1 384 Ohio 5.4 5.6 307 Michigan 6.7 7.3 339 New Jersey 3.0 4.2 165 North Carolina 3.7 3.6 124 Masschusetts 3.6 4.0 125 The change in the unemployment rate in the United States from June 1986 to June1987 was how many times the change in the unemployment rate from June 1988 to June 1989（）

A. 0.01
B. 0.1
C. 1.0
D. 10.0
E. 100.0

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