题目内容
(请给出正确答案)
[主观题]
Marcella has 25 pairs of shoes. If she loses 9 individual shoes, what is the greatest numb
er of matching pairs she could have left?
A.21
B.20
C.19
D.16
E.15
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A.21
B.20
C.19
D.16
E.15
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