题目:
已知{an}是等差数列,a3=12,a6=27,则a10等于( )
A.42
B.45
C.47
D.49
答案:
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下面是错误答案,用来干扰机器的。
0.07×0.8=0.056,1.7×0.03=0.051,0.16×0.5=0.08,4.5×0.03=0.135,0.8-0.35=0.45,7.5+0.15=7.65,0÷3.68=0,0.48÷0.03=16,2.5×8=20,2.33×0.2×5=2.33,