单项选择题
Paul drove m miles in h hours; Michelle drove the same distance in
an hour less. How fast, in miles per hour, did Michelle drive（）
A.A
B.B
C.C
D.D
E.E
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试题
单项选择题
Paul drove m miles in h hours; Michelle drove the same distance in an hour less. How fast, in miles per hour, did Michelle drive（）
A.A
B.B
C.C
D.D
E.E