题目

下列各式中，是最简二次根式的是（ ） A . B . C . D . 答案：CA. cold B. more C. like D. many E. wear F. quicklyMrs. Drake is almost 70 years old. She started a club. It was a walking club. There are now ten people in the club, and most of them are old people 【1】 herself. The people walk two miles every day. They walk very 【2】 because that is the best way to stay in shape. When it is too 【3】 to walk outside, they walk in a shopping mall. They all 【4】 T-shirts that say “I Love Walking.”Something funny happened to the walking club one day. A dog began to follow them. Soon, there were two 【5】 dogs. Now the walking club has both people and dogs walking every day.