1.不连续(定义域内)
2.图象的切线斜率发生突变（比如y=|x|在x=0处是不可导的,因为根据定义,从左右逼近,得到的导数值不同.）
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- 1世界上四大湖
- 2Are you going to stay with the one who loves you.
- 3you shouldn,t go home by yourself.翻译
- 4一项工程,甲乙合作10天可完成,甲乙合作8天后,乙又单独做了5天完成.若乙单独做这项工程,需要多少天?
- 5When the customer with no legs said he needed a pair of shoes,the salesman stood there ____ ideas what he should say.
- 6七年级买什么教辅书好
- 7文章中电视节目应该用什么标点符号
- 8轴的转速n=240 r/min,传递功率为P=180 kW,许用切应力[τ]=40MPa,试按强度条件计算轴的直径.
- 9Jimmy was so nervous that not a signal word _____down in the dictation.
- 10nothing can let me make sure u wanna leave me i know some memories of we have u forget but i don't