已知
=2,
=3,则
=( )
A.
B.
C.
D. 6
人气:349 ℃ 时间:2020-02-03 14:39:58
解答
∵
=2,
=3,∴
=2,
=3,∴
=2×3=6.
∴
=
=
=
=6,
故选D.
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