山东指纹锁
I have a lot of things to do in my free time.Usually I take exercise after school.I like basketball and volleyball very much.Sports help me to keep healthy and study better.I often watch TV or do some reading in the evening.Sometimes I listen to music for a while.I find it a good way to relax myself.Of course,I help my parents with the housework at the weekends.I clean the house,wash clothes and learn cooking.Sometimes I go on a field trip with my friends.We always have a good time!
zizzandwzy
22 边角边公理(sas) 有两边和它们的夹角对应相等的两个三角形全等23 角边角公理( asa)有两角和它们的夹边对应相等的两个三角形全等24 边边边公理(sss) 有三边对应相等的两个三角形全等25 斜边、直角边公理(hl) 有斜边和一条直角边对应相等的两个直角三角形全等26 定理1 在角的平分线上的点到这个角的两边的距离相等27 定理2 到一个角的两边的距离相同的点，在这个角的平分线上
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