f[x]是定义域为R的奇函数x∈（0,1）,f[x]=2的x次方/4的x次方+1

英语中逗号连接两个句子,但第二句是祈使句,那动词是用原形还是非谓形式? 形容脸红的句子脸红得……（怎么样） 在这物欲横流的时代,动物间尚且有如此真挚的感情,又怎不让人感到脸红呢?对这句话的理解理解我着急要长一点的理解 至少2句话 英语中形容脸红怎么表达. 一个女的唱的英文歌,蛮节奏,歌词里好像有 stand here,face to face.是什么歌? 形容脸红心慌的四字词语我只好推开门,当着大家的面走进静悄悄的教室.你们可以想象,我那时脸多么红,心多么慌!（用四字词语代替脸多么红,心多么慌） 一首英文歌,歌词里有 face to face heart to heart 有点像黑人说唱的, 110304天天向上有首男声的英文歌,挺欢快的,歌词有her hair her hair…when I see your face…是什么歌? 高分求一首英文歌名歌词有look at my face,look at my eyes.make it history,got no good for me,just do it.look at my face,look at my eyes,look at the sun that always mine,look at the years,look at the days,look out the window. 求歌名歌词you touched my shoulders you kissed my face很动感的英文歌 on the face和in the face的区别是?比如He hit Jack on the face 和 He hit Jack in the face 有什么区别? in/on the face的区别如题那比如说hit me in the face,打到皮肤组织下层去了？ 描写脸红时和脸色苍白时的词语成语哦 in the face 与on the face的区别 脸红,心慌用一个什么词语来概括?如题 My son said the man had hit him( ) A.in the face,B.on his face.C.on the face .D.in his face 不要这种大众的……能来点生僻的么……拜托各位！ 英语句子逗号问题Now what i can tell you is that,each time i opened this envelope,my heart would sink.第一个逗号能省略吗? on her face,in her face,at her face的区别说明一下，on her face，in her face，at her face的区别，举个例子什么的、 谢谢~ 英语句中有逗号怎么分析句子? 说词语:形容心神不定,非常心慌的样子.是哪个词的意思? In my hometown almost all the builing face in my hometown almost all the buildings face to the _ laugh in my my father slapped me in ____face last night.A.the B.my哪个对,为什么 ①Look in my face,l am somebody；Look in my①Look in my face,l am somebody；Look in my back,l am nobody.(翻译)②What do you call a witch at the beach?(翻译)求这两题得翻译! 歌词里边有这样几句：when you kiss me..I can see your face .in my arms (eyes)外国女歌手唱的,调不高,声音稍稍有点沙哑 韩国语这几个元音怎么读的.音标.ㅐ ㅘㅙㅚㅝ ㅟㅢ还有四个音我打不出来.就用空格空出来了.谢谢有心人可以把那4个也告诉我好吗? 元元音如何用英语读出来,并且写出音标 20个元音音标怎么读 如何快速高效的记忆英语单词? 英语元音音标表