怎么求导数不存在的的点是极值点

I've studied growing plants as one of my interests. Could I make some suggestions? Go right ahead.谁能翻译一下 英语翻译 product manual是什么意思 manual setting是什么意思 polite有比较级和最高级吗? it has given fame and fortune to many names and faces for almost a century 呵呵 戒不掉的爱英文怎么写,规范的 你是我戒不掉的爱 英文怎么说规范的 manual override是什么意思 very是什么意思 very 什么意思啊 very clerve是什么意思 Money and fame ------ always make people happy.fame后面是doesn't还是don't 说原因 Will she let money and fame ______the way she lives?四个选项：find feel stop change 并翻译一下, money and fame don't always make people 1.Who is swimming in the river now?用yesterday afternoon改写 （ ）（ ）in the river yesterday afternoon?2.I am very happy when I meet my old friends.改为同义句 I am very happy( )( )my old friends. ——How was your trip tu wuhan last week?——Great!Rarely(did I have ) such a plaesant holiday.为什么括号里只能用过去式,而不能had I过去完成时 very 是什么意思? The very Friday中的very是什么意思干什么用的 Blanche怎么读,要中文谐音 根据首字母提示补写单词 1 Look at the B____.There are three floors.2 There are some r___rooms in Building A.3 —Are there any p____ in this school?4 how many d____ halls are there in Lucy’school?5 On the ____（one）floor.We can see a b Si j'etais Carla呢首歌中文系什么意思? si j'etais carla法语````快快 Si J'Etais Carla 歌词 求薛凯琪《si j'etais carla》这首法语歌的中文翻译 英语句子翻译几个空,麻烦了,谢谢 根据文意和首字母提示完成短文.Weather is a common topic for the English.In England,P __________ don't usually talk much.When they get on a bus ,or a train,they just sit looking o ___________ of the window.Often they r_________ some newsp 李达、李汉俊、张国焘、刘仁静、毛泽东、何叔衡、王尽美、邓恩铭、陈潭秋、董必武、这些人中哪些是背叛党的? 中共一大王尽美、邓恩铭代表事迹? 王尽美邓恩铭的雕像在五龙潭的哪里 解释《籴米》解释,把意思写清楚 买米卖米籴粜米猪辈门不开对虾联，无聊者自重