直线与椭圆相切求切点

改为同义句（英语）I have learned English for six years.(改为同义句)It is six years ( ) I ( )to learn English. 英语同义句转换They were very little children.They needed to be procteted.They were _______ little children_______they needed ______. Dad,my trousers are old.I want to buy a new______. A trousers B one C it D pair 如何才能骑水牛? _________(invitation)your parents to the open day Do you ______ in the students music center.Yes .I ______ the student with the guitar and the violin . classification ofsubtype of acute ischemic stroke A Survey of Constipation in Acute Stroke Patients 帮忙下一篇文章.哪们大侠可以,如果哪位大侠找到了,麻烦发到我邮箱 Excusw me ,where's the theatre?Excusw me,( ) can I ( ) ( ) the theatre?It's best to go there by bus.You ( ） （ ） take to go there.I sit behind Wu Dong.Wu dong sits ( ) ( ) ( ) me.Please don 't close the door.Please ( ) the door ( ).Please take t 分析句子请问 going to 在此句做什么成分 什么意思还有 going to 的用法music is one of most popular forms of entertainment ,and going to concerts has become a part of their lives .请问 going to 在此句做什么成分 什么意 there is going to be是什么句子成分,全句哦 Michel 怎么读? michel michel sardou是什么意思 Michel什么意思 某芳香烃能使酸性高锰酸钾褪色,碳氢原子个数比为3：4,0.1mol该烃完全燃烧后,产物通入浓硫酸中增重10.8g,已知该烃只有一个支链,且侧链上的一溴代物有两种.（1）该烃的结构简式为（2）写出 Signs can be seen on the roads.___ can people see them?A Where place else B Where else placeA Where place else B Where else place C Where else D anywhere MICHEL怎么样 Forests are no less important than useful. oppo的广告its me its me its real me的是什么歌 求女生伤感的英文短语 没有听到任何声音的英文怎么说啊（词组） 在使用Huckel规则上面~我有以下几个疑问.1.如何判断非苯芳烃所有C原子是否共平面?如课本上的8轮烯还有题目中确实做到许多~可答案只给了不在同一平面.2.如何快速判断所有C都是SP2杂化?不要 相对分子质量为92的芳香烃是什么 Sometimes you really Sometimes,you say,really very hurt hearts! 一个极难又深奥的问题：为什么黄牛不干水牛的B?他们为什么不交配 水牛怎么交配的 填上合适的的单词完成句子,每线一词 Is this blue pen ________,Dick?No,______is black. 根据以下条件,确定某芳香烃A（相对分子质量不超过225）的结构简式：①．取少量烃A,完全燃烧需O2V升（27℃,101.325kPa）,燃烧完全后混合气体体积为1.6V升（127℃,101.325kPa）；②．0.1mol烃A在过量 _______ of the students _______ a fact sheet about the amazing things in the worldA.Each;have B.Each;hasC.All ;has D.takes;photos :I am witing for you back,boys and girls,啥意思?