A.9 B.10 C.11 D.12A.9 B.10 C.11 D.12

admin2020-12-24  6

问题

选项 A.9
B.10
C.11
D.12

答案D

解析(7-3)×9=36,(15-12)×4=12,(35-15)×6=120,因此,(7-6)×12=12。
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