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题目内容
用计算器计算12
4
×
1
1
5
,按键的顺序为( )
A.12x
y
4×1ab/c1ab/c5=
B.124x
y
×1ab/c1ab/c5=
C.12x
2
4×1ab/c1ab/c5=
D.124x
2
×1ab/c1ab/c5=