题文
谁做得对,奖他(她)一面
.
(1)1
﹣
×
=1×
=
1
﹣
×
=1
﹣
=1
(2)72×
÷72×
=72×
×
=
72×
÷72×
=(72×
)÷(72×
)
=1
.
谁做得对,奖他(她)一面
.
(1)1
﹣
×
=1×
=
1
﹣
×
=1
﹣
=1
(2)72×
÷72×
=72×
×
=
72×
÷72×
=(72×
)÷(72×
)
=1
.
试题篮
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