题目

Education now only accounts for 4percent of our country's total budgets．______，the figure in some developed countries is around 10percent．（ ） A．By coincidence  B．At random C．In addition   D．By comparison 答案：D一个几何体由几个大小相同的小正方体搭成，其左视图和俯视图如图所示，则搭成这个几何体的小正方体的个数是（ ）A．3 B．4 C．5 D．6