202111 学习

佳创兴2015

11.23  I want to  buy a present for my mom . but i don't have money. What should i do?      B: Don't buy a present for  her. Make her something. A: what do you mean ? Make her something?  B: You could  make her a cake , you could write her a song, you could paint her a painting. A: Ooh ,i want to paint my mom a painting. Great idea!

佳创兴2015

11.24  X^ n= a ,   √a           beginning  ,  the rest,   Police officer, Engineer

佳创兴2015

根式的基本性质.

佳创兴2015

11.28 A: I need a change.I am going to look for a new job.      First,I will expain everything to my boss.  He won't be happy, but he'll understand.         What will I tell my wife? I won't make much money.       B: When will you find a new job? Where will it be ?      A: I'll know soon. It won' be a problem , honey. Don't worry.

佳创兴2015

11.29  最简根式，同次根式，同类根式。

佳创兴2015

11.30 根式的乘方。 TURBO , chill , EXTINGUISHER .  pale ,  scale . 工件装卸料系统: 网带式， 推杆式，步进梁式， 滑轨式， 台车式，滚底式，振底式。热处理设备。