振幅和周期

“英语周”用英语如何表达 关于追求的文章或事例字数不限 不要太烂就行 谁给推荐点英文歌曲 1.do you have to wear uniform today?2.do you have to wear a uniform at school?为什么第一句没a, Do we have to wear the school uniform为什么不用dress.还有为什么要用冠词the 求一篇有关于李伟事迹的作文……急求,就是中国达人秀上的残疾钢琴师李伟,写出看了他的感人故事后的感想,题目题材不限,字数800, 用所给词的正确形式填空I can ___ (pick)up some ___ (salt) 后头还有Does he ____ （like）this pair of _____ （run）____ （shoe）?We have much ____ （sugar）but we don‘t have many _____ (dumpling)亲.. I will always at your side,who support you 老人种了一辈子树’把自己也种进了树里.请问人1、上文中哪些句子写出了“老人对树像对自己的孩子”,用“_”在文中画出来. 哪些句子写出了老人对树像对自己的孩子 英语作文描写你的朋友 开头Al l of us have lots of good friends in our life. 英语倒装 Seldom does he go out.这个句子到底属于部分还是完全倒装?为什么?我就困惑了. 上课很少迟到 用英语怎么讲 要用seldom 的倒装句子 一首比较快节奏的英文歌 男声唱的 第一句话貌似是I konw I have a lot of friends副歌是以tonight结尾 英语 用seldom have I 造句,注意用倒装 请问：Seldom does she get up before 10 o'clock.这是部分倒装还是完全倒装? They arenn't tigers.They're lions哪错了 They're only $32.有语法错误吗 And after the fourth class,it is time four lunch.After lunch I have a long break time.I always draw pictures because I love drawing.The classes in the afternoons begin at 2:20. the pumpkin plants need water and sunlight. __________ open the window for you?A Would you want me B Do you like me C Shall I D would you like this does not always happen能改成this always does not happen吗 this does not always happenthis is not always happen把does变is这样改可以吗?为什么不能？ 下面哪座山是中国佛教四大名山之一? are they watchingTV now?yes,they're 改错,有一处 PingPing is drawing a picture.I can sleep on the window.改为一般疑问句. Are they his shorts?是什么意思 They enjoy swimming in summer 同义句They______ ______swimming in summer damage,destroy,hurt,spoil,injure这几个词表示伤害时用法有什么区别?damage,destroy,hurt,spoil,injure这几个词表示"伤害"时用法有什么区别? He writes to me every three months (改为同义句） He writes to me____ _____ two months Dont open the window 同义句please ( )the window ( ) hurt ,injure ,destroy,wound ,harm.的区别．这些都是受伤的意思．但我不懂它们的区别．