一年级数学绘本

己知x^2+y^2+8x-4y=0与以原点为圆心的某圆关于直线y=kx十b对称(1)求k和b旳值(2)若这时两圆交点为AB,求角AOB的度数 已知圆x^2+y^2+8x-4y=0与以原点为圆心的某圆关于直线y=kx+b对称1.求k.b的值.2.若这时两圆的交点为A.B,求角AOB的度数. 英语题目Now people in _____of China____water very much.Now people in _____of China____water very much.A.south-west,need B.west-south,need C.south-west,needs D.south-west,needing Now people in _____of China____water very much.Now people in _____of China____water very much.A.south-west,need B.west-south,need C.south-west,needs D.south-west,needing 用文言文写发生在身边的幽默对话,两小时之内的加20分 已知圆C:x^2+y^2-2x+4y-4= 0,问在圆C上是否存在两点A、B关于直线y=kx-1对称,且以A、B为直径的圆经过原点 在沙漠中心 课后词语全部解释 《在沙漠中心》课后读读写写的词语解释 《在沙漠的中心》课后词语解释 关于与快渴死的鱼对话的古文好像是初中学的一篇文章,讲得是一个人看见一个小潭里有条快渴死的鱼,他却告诉鱼要给它大片的水而不是立即能救它,是出自哪篇文章里的啊? So far as he said,the book _________(would/will) be published ________(tomorrow/the next day) 选哪个 为什莫 怎没翻译 thanks Remember________the book next timeB.to take C.to bring 答案为什么是C呢,B为什么不行呢?请说明原因. I said that i would book a book next day 怎么转被动语态 i didn't remember (give) her the book before.（give）句子对不对? 动词+副词的短语后面跟动名词吗,或在接名词用to do吗如give up后接动名词,加n.后是不是要加to do 什么词组后用动名词,什么词组后用to do还要一些固定搭配,用上doing和to do 例：be good at+doing 请用下面对话翻译成文言文 最近怎么样阿 有没有想我 挺想你的你呢 古人是用文言文对话还是像我们一样对话? 朝花夕拾读后感题目不要《朝花夕拾》读后感之类的 朝花夕拾的读后感题目朝花夕拾的读后感能用那些题目来命名,使人有读的欲望?希望能有眼前一亮的题目,谢谢! He didn't seen to mind__TV while he was trying to study.Athat they watchA that they watchB their watching解释 He said nothing about the TV show.(),he didn't watch it.A In fact B First C At last D So What his mether said didn't c______his mind. bob said he was going to join our club but he didn't.he()his mind.A.can't have changed B.wouldn't have changed c.must have changed d.shouldn't have changed.我觉得C.D都能选啊,他肯定改变了他的想法或他不应该改变他的想法的, Tony said,"I didn't watch TV last night."改为现在完成时Tony said﹙﹚﹙﹚﹙﹚﹙﹚TV the nightTony said,"I didn't watch TV last night." 改为现在完成时 Tony said﹙﹚﹙﹚﹙﹚﹙﹚TV the night before. 翻译高手,英语高手 HELP HELP!“我们应该尽最大的努力防止“非典”蔓延呢”?前面是：We should try to .怎么翻译嘞? What do you think of the singers who help raise fund for the charity grounps why?用英语回答 HELP翻译中文什么意思 仿照《杨氏之子》用自己的话写一则发生在你周围的关于幽默的对话 怎样编写一个幽默对话的古文!讲一下怎样编写!紧急救助!顺便讲一下,字对应的古文! how does candy help in the playground 句子翻译 求关注心理健康,做阳光少年的作文!800字至900字!