已知圆c的极坐标方程为p2sin

“龚”姓是什么发音有人说是第一声,有人说是第三声.到底是哪个发音,最好是官方回答. 英语中经常看见有人说什么补语,补语是不是就是宾语不足语以 i turned round为例说明吧,谢谢. 英语中的宾语补语麻烦问下,比如短语动词中的一些搭配,及物动词+副词这种,put off推迟,put on穿上,如果后面的宾语不是代词,那么就是put on the T-shirt,on 修饰put,可是如果后面宾语是代词,放在中 I think ____ right that you didn't go there.A you B you're C itD its I got there ___late___i didn't see him Atoo to Bsuch that C so that d so as 过去分词作受词补语 表被动 现在分词作受词补语 表什么 时态都是什么i heard someone knocking at the door?i heard the song sung everywhere.为什么第一个是knocking现在分词 第二个是sung过去分词.这两个句子 关于现在分词作宾补请先看看下面这两个句子：1.I didn't like him taking all the credit.2.He hates me parking in his space.我想请问的是,从上两句可以看出like和hate都有like/hate sb doing的用法,但为什么在语法 直线y-根号三=0的斜率是 （ ） 与y轴垂直,且经过点（-1,根号2）的直线方程______爱你们…… 救命啊~高一数学问题!1.y=-2t(那个T有平方)+2t+2,求它的直域.单调区间.周期和对称轴,我要过程!谢谢 因为俺简直就是一个数学白痴．．所以请各位大虾们帮帮忙哟～1.经过球的一条半径的中点做垂直于这条半径的球的截面,则此截面的面积与球的表面积的比是（）A.1/16B.3/16C.16/3D.162.直线(2m-1)x “天人合一”观对现代人处理人与自然的关系有什么启发意义? 英语语法 及动词原形与ing形式A lack of qualifications can be a major obstacle to finding a job.学历不足可能成为谋职的主要障碍.其中的finding 可以改为find 如果不行,请说明原因 here is your home ,because it have your friends and me .waitting for you! 急求高一水平数学文字题.高一水平的.文字题..随便都可以,高一水平就可以了 最好考智商点的.谢谢 ..要有答案哦.呵呵在线等 有没什么好方法能够提高数学成绩, 改错 Yesterday my father`sfriend called on him Bruce r______ up his father in Sydney yesterday. He ______(sleep) when I called him yesterday evening.用所给词的适当形式填空 真的非常着急. She is ()friend括号中填i的什么形式 要写出来1 I___a friend.She___a doll Aam ;can Bhave;am C have; has     尧是哪一时期的人物?  Call phones and using a cell phone in public.（good manners） 写几句短语,请高手告诉我下 谢谢.For example,you can talk about the cell phone you like,how often you use your cell hpone,do you think it`s rude to use a cell phone in public so i asked him to call his parents using my phone 英语改错为什么不在using 前加by? 哪位好心人有2011年4月9号的托福预测机经啊 麻烦发给我一份啊 万分感谢! 我的邮箱dadi2009win@163.com邮箱dadi2009win@163.com 他把他的手机拿给六位同学看He __his cell phone __six stdents 空填什么 描写美景的古诗文 ,词 You and a fried are going out.You are ready,but he or she isn't. you ahd a friend are going out .you are ready ,buthe or shi You and a friend are going out ,you are ready,but he or she isn't.What do you say?怎么用英语回答 春花含笑意 爆竹增欢喜 横批：喜气盈门 的含义 对联“春花含笑意,