题目

Let children learn to judge their own work. A child learning to talk does not learn by being corrected all the time, if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people’s. In the same way, children learning to do all the other things without being taught-to walk, run, climb, whistle, ride a bicycle-compare their own performances with those of more skilled people, and slowly made the needed changes. But上海世博会永久地标建筑世博轴获“全球生态建筑奖”，该建筑占地面积约为104500平方米．其中104500这个数用科学记数法表示为A．1.045B．0.1045 C．10．45D．1.045