问题 选择题 已知3a=14.34,3b=0.1434,那么ab的值为( )A.100B.1000C.100000D.1000000 答案 ∵3a=14.34,3b=0.1434,∴a=14.343,b=0.14343,∴ab=14.3430.14343=1000000.故选D.