题目

Two of the saddest words in the English language are “if only”. I live my life with the goal of never having to say those words, because they express regret, lost chances, mistakes, and disappointment.My father is famous in our family for saying, “Take another minute to do it right.” I always try to live by the “another minute” rule. When my children were young and likely to cause accidents, I always thought about what I could do to avoid an “if only” moment, whether it was something small like moving a cup full of hot coffee away from the edge of a table, or something that req（1）边长为1厘米的正方形的面积是________。（2）________的面积是l平方厘米。（3）边长为1分米的正方形的面积是________。（4）________的面积是l平方分米。（5）边长为1米的正方形的面积是________。（6）________的面积是l平方米。