解不等式组$\left\{\begin{array}{c}x<2x+1\\ 3x-2\left(x-1\right)\le 4\end{array}\right.$

“玛雅”一词的来源是(    )

设$\overrightarrow{a}$，$\overrightarrow{b}$，$\overrightarrow{c}$是同一平面内的单位向量，且$\overrightarrow{a}$⊥$\overrightarrow{b}$，则（$\overrightarrow{c}$﹣$\overrightarrow{a}$）•（$\overrightarrow{c}$﹣2$\overrightarrow{b}$）的最大值为____ 

    Danish was a very lazy girl. Her mother always asked her to learn to read, 1she didn't．It was disappointing．Her mother was 2about that．
    One morning，Dinah just 3 and was looking through the window．She saw her cousin skating on the 4．He was wearing a pair of shoes she had never5 before．It was a pair of roller-skates(旱冰鞋)．Dinah thought it was interesting to 6 on the street．She got up quickly and went outside．She asked her cousin if she 7 try his shoes on．Her cousin said to her，”I know that your 8 has been asking you to learn to read，but you haven't 1earned．It is just because you are 9．If you can read by New Year's Day，1 will send you a pair of 10 like this．”
    From then on，Dinah read every day and began to like reading．On New Year's Day she received a pair of roller—skates from her cousin．