已知a-2b=-2,则4-2a+4b的值是( )
A. 0
B. 2
C. 4
D. 8
人气:413 ℃ 时间:2020-01-14 13:02:06
解答
∵a-2b=-2,
代入4-2a+4b,得4-2(a-2b)=4-2×(-2)=8.
故选D.
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