第二类曲面积分的正负

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第二类曲面积分的正负
精确的近义词反义词 请问北京周末哪里的英语角比较火?问问具体的时间和地点, 请问谁知道北京哪有周末英语角,请告诉我一下. 英语CET4级 英语4级 就是从we have been told 到英语CET4级英语4级就是从we have been told 到either.这个句子的言外之意是什么? —I like English but I can't study it well.-So( ).抱歉,是同一人说得,so之前没有横线A.does my brotherB.my brother isC.it is with my brother I 'd like to study English with foreignerl like English so much,so I 'd like to study English with a foreigner who likes Chinese too,we can help each other.who whould like to 二、这组歇后语的半句都是成语,你能补不上吗?氢气球上天-( ) 过河拆桥—( )老鼠爬进书箱里—( ) 屋漏又遭连夜雨—( ) 鸡给黄鼠狼拜年—( ) 狗改不了吃屎—( )飞蛾补灯—( 跪求save ,safe,safety,safely的用法 Safety,Safely,的区别\save,safe的区别 时钟6时敲6下,10秒敲完;10时敲10下,几秒敲完? why the What the bear eats为什么bear前要加the急~ Why do you put the bear in here bore to the northwest是什么意思?为什么用bear?As soon as they left his high hedges at the east of his fenced lands they turned north and then bore to the northwest.出自霍比特人.如题. bear to the left.为什么要用bear,bear不是忍受的意思嘛. she like music否定句 I like pop music.I like classical music,too.(用both改写句子)I like _____ pop music _____classical music 感觉自己英语水平越来越差,现在学Excellent English还有用吗? 想提高实用英语,是用Excellent English还是新概念呢?想锻炼自己的英语口语能力,不知道哪个教材比较合适我?我的语法和词汇基础个人觉得还可以的. Sara _____go to her first movie _____ she was fifteen There is _______ to what he said: I'll follow his advice.第十课练习There is _______ to what he said: I'll follow his advice.anything nothing something a thing The ambassador's posting has come _________; it's Washington.out up through off The fa The smlths like pop and jazz music(改为否定句) what he or she emphasized? 这句话中的emphasized是过去分词做形容词还是动词过去式?详细点,谢谢了. take sth 9 take turns to do sth.的中文意思 (1)His son will pass the exam.He said.改为含有宾语从句主从复合句 He said( )his son ( )( )the exam(2)Lucy hasn't decided which trousers to buy(改写为复合句)Lucy hasn't decided ( )( )( )( ) buy(3)I hope to see you again.(改为 Mr black said:i have been to jilin twice .合并为含宾语从句的主从复合句Mr black said( )( )( )( )to jilin twice 将下列双句成语补充完整( ),败在絮中 将下列双句成语补充完整,是那些没有填的 把下列成语补充完整( )秋色 ( )观色 ( )失色 ( )厉色 ( )改色( )国色 ( )本色 ( )逊色 ( )人色 ( )有色( )声色 ( )悦色 ( )绘色 ( )六色 ( )十色 高二数学竞赛怎样复习? getting started.这里为什么getting是现在进行时而started又是过去时?