,Question,A,B,C,D,Answer 0,下列算式中,结果与 不相等的是,0.2÷0.5 ,4÷10,16÷40 ,20÷500 ,D 1,"集合A={1,2,3, 4}的真⼦集个数为",14,10,11,15,D 2,当X=[ ]时,5X-9=51,60,8.4,12,1,C 3,下⾯的数与0最接近的⼀个数是,-1,-5,+5,+2,A 4,做⼀个圆柱形通⻛管要⽤多少铁⽪是求,表⾯积,底⾯积 ,体积 ,侧⾯积 ,D