一英尺=( )码=( )米?一英里=( )码=( )米?一盎司=( )克?一磅=( )千克?

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一英尺=( )码=( )米?一英里=( )码=( )米?一盎司=( )克?一磅=( )千克?
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一英尺=( )码=( )米?一英里=( )码=( )米?一盎司=( )克?一磅=( )千克?
一英尺=( )码=( )米?
一英里=( )码=( )米?
一盎司=( )克?
一磅=( )千克?

一英尺=( )码=( )米?一英里=( )码=( )米?一盎司=( )克?一磅=( )千克?
一英尺=(0.333332)码=( 0.3048)米
一英里=(1759.95 )码=(1609.3 )米
一盎司=( 28.3495)克
一磅=(0.4536 )千克
肯定对

一英尺=(1/3 )码=(0.3048 )米?
一英里=(1760 )码=(1609 )米?
一盎司=( 28.35)克?
一磅=(0.454 )千克?