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单选题
Find the ratio of 1 foot 8 inches to 1 yard.
A
1：3
B
2：9
C
5：9
D
3：5
E
5：12
参考答案
参考解析
解析：
1 ft. 8 in. =20 in. 1 yd. =36 in. 20/36=5/9
1 ft. 8 in. =20 in. 1 yd. =36 in. 20/36=5/9
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