的可导性( )
·处处可导
·处处不可导
·仅在·仅在<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1698996665159beaea436bc8549bc84831da6179ac4a7image85.png" 处可导
出自:佳木斯大学语言治疗学